In the Sciences, primary sources are documents that provide full description of the original research. For example, a primary source would be a journal article where scientists describe their research on the human immune system. A secondary source would be an article commenting or analyzing the scientists' research on the human immune system.
|Primary Source||Secondary Source|
|Conference Papers||Criticism and interpretation|
Law and Legislation
|Patents||Moral and Ethical Aspects|
|Studies or Surveys||Public Opinion|
Source: The Evolution of Scientific Information (from Encyclopedia of Library and Information Science, vol. 26).