APA Citatie

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

Chicago Style citaat

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

MLA citatie

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

Let op: Deze citaties zijn niet altijd 100% accuraat.