Keeton, W. T., & Bensadoun, P. D. (1969). Elements of biological science (First edition.). National Bookstore.
芝加哥风格引文Keeton, William T., 与 Paula DiSanto Bensadoun. Elements of Biological Science. First edition. Manila: National Bookstore, 1969.
MLA引文Keeton, William T., 与 Paula DiSanto Bensadoun. Elements of Biological Science. First edition. National Bookstore, 1969.
警告：这些引文格式不一定是100％准确.