APA
(1990). Proceedings Of National Academy of Sciences of The United States Of America. New York: Pergamon Press.
Chicago
1990. Proceedings Of National Academy of Sciences of The United States Of America. New York: Pergamon Press.
Harvard
(1990). Proceedings Of National Academy of Sciences of The United States Of America. New York: Pergamon Press.
MLA
Proceedings Of National Academy of Sciences of The United States Of America. New York: Pergamon Press. 1990.