APA
(1999). Proceedings Of National Academy of Sciences of The United States Of America. New York: Pergamon Press.
Chicago
1999. Proceedings Of National Academy of Sciences of The United States Of America. New York: Pergamon Press.
Harvard
(1999). 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. 1999.