APA
(1994). Proceedings Of The National Academy Of Sciences Of The United States Of America. U. S. A: .
Chicago
1994. Proceedings Of The National Academy Of Sciences Of The United States Of America. U. S. A: .
Harvard
(1994). Proceedings Of The National Academy Of Sciences Of The United States Of America. U. S. A: .
MLA
Proceedings Of The National Academy Of Sciences Of The United States Of America. U. S. A: . 1994.