APA ציטוט

Perry, W. J. (1987). Technologies to maintain biological diversity. Washington: Congress of the United States.

Trích dẫn kiểu Chicago

Perry, William J. Technologies to Maintain Biological Diversity. Washington: Congress of the United States, 1987.

ציטוט MLA

Perry, William J. Technologies to Maintain Biological Diversity. Washington: Congress of the United States, 1987.