Chemistry

Highly recommended by Choice reviews, this set offers "more than 500 new articles on scientists who have died since 1980, 75 articles on scientists missed in the previous 18 volumes, and 250 upgrading commentaries on ... previously recognized scientists" all "accompanied by photographs and bibliographies." Those bibliographies give you a solid set of resources for further research, while the articles, being signed work of scholars in the field under editorial control, may be acceptable for citation. Check with your instructor! The emphasis is on natural and formal sciences, but information relating to psychology, for example, can be found using the index, volume 8.