APA
Paul R. Ehrlich ; Richard W. Holm ; Irene L. Brown, . (1976). Biology and society. New York: McGraw Hill.
Chicago
Paul R. Ehrlich ; Richard W. Holm ; Irene L. Brown, . 1976. Biology and society. New York: McGraw Hill.
Harvard
Paul R. Ehrlich ; Richard W. Holm ; Irene L. Brown, . (1976). Biology and society. New York: McGraw Hill.
MLA
Paul R. Ehrlich ; Richard W. Holm ; Irene L. Brown, . Biology and society. New York: McGraw Hill. 1976.
