APA
(1987). Proceedings Of National Academy of Sciences of The United States Of America. New York: Pergamon Press.
Chicago
1987. Proceedings Of National Academy of Sciences of The United States Of America. New York: Pergamon Press.
Harvard
(1987). 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. 1987.