Reference resources are usually encyclopedias, dictionaries, handbooks, manuals and other books that you would refer to when wanting to know a definition of a word or concept, a general overview of a topic, specific information about a certain period of time or event in history.
American Environmental Leaders: From Colonial Times to the Present is a collection of biographies of the men and women who have made a significant contribution to environmental issues over the last 200 years. Biographies range from scientists to advocates, businessmen to musicians, politicians to actors, along with others who have forever altered how we think about the environment.
Bumble Bees of North America is the first comprehensive guide to North American bumble bees to be published in more than a century. Richly illustrated with color photographs, diagrams, range maps, and graphs of seasonal activity patterns, this guide allows amateur and professional naturalists to identify all 46 bumble bee species found north of Mexico and to understand their ecology and changing geographic distributions.
The Dictionary of Developmental Biology and Embryology, Second Edition, is the first comprehensive reference focused on the field's terms, research, history, and people. This authoritative A-to-Z resource covers classical morphological and cytological terms along with those from modern genetics and molecular biology.
Encyclopedia of Insects covers all aspects of insect anatomy, physiology, evolution, behavior, reproduction, ecology, and disease, as well as issues of exploitation, conservation, and management, this book sets the standard in entomology.
The Princeton Guide to Ecology is a concise, authoritative one-volume reference to the field's major subjects and key concepts. Edited by eminent ecologist Simon Levin, with contributions from an international team of leading ecologists, the book contains more than ninety clear, accurate, and up-to-date articles on the most important topics within seven major areas: autecology, population ecology, communities and ecosystems, landscapes and the biosphere, conservation biology, ecosystem services, and biosphere management. Complete with a glossary of key terms and suggestions for further reading on each topic, this is an essential volume for undergraduate and graduate students, research ecologists, scientists in related fields, policymakers, and anyone else with a serious interest in ecology.
U.S. Land and Natural Resources Policy: A Public Issues Handbook offers a comprehensive overview of the policy debates surrounding U.S. public lands and the natural resources they contain. This greatly expanded second edition traces the origin and evolution of policy, the current debate and future direction of land and natural resources policy.
The Visual Guides series answers the most important questions on topics that fascinate everyone through a series of videos and animations: weather, the human body, the Earth, the universe and plants. It provides images of natural phenomena and explanations of fundamental concepts, and features the very latest discoveries in these areas.