Cita APA (7th ed.)

Ehrlich, P. R., Holm, R. W., & Raven, P. H. (1969). Papers on evolution. Little Brown.

Cita Chicago (17th ed.)

Ehrlich, Paul R., Richard W. Holm, i Peter H. Raven. Papers on Evolution. Boston: Little Brown, 1969.

Cita MLA (9th ed.)

Ehrlich, Paul R., et al. Papers on Evolution. Little Brown, 1969.