APA-referens

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

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.