Ehrlich, P. R., Holm, R. W., & Raven, P. H. (1968). Papers on evolution. Little, Brown.
芝加哥风格引文Ehrlich, Paul R., Richard W. Holm, 与 Peter H. Raven. Papers on Evolution. Boston: Little, Brown, 1968.
MLA引文Ehrlich, Paul R., et al. Papers on Evolution. Little, Brown, 1968.
警告：这些引文格式不一定是100％准确.