APA

Nason A., DeHaan R. L., . (1973). The biological world. New York: John Wiley & Sons.

Chicago

Nason Alvin, DeHaan Robert L, . 1973. The biological world. New York: John Wiley & Sons.

Harvard

Nason A., DeHaan R. L., . (1973). The biological world. New York: John Wiley & Sons.

MLA

Nason Alvin, DeHaan Robert L, . The biological world. New York: John Wiley & Sons. 1973.