Ward, B., & Dubos, R. J. (1972). Only one earth: The care and maintenance of a small planet (First edition.). Norton & Company.
芝加哥风格引文Ward, Barbara, 与 René J. Dubos. Only One Earth: The Care and Maintenance of a Small Planet. First edition. New York: Norton & Company, 1972.
MLA引文Ward, Barbara, 与 René J. Dubos. Only One Earth: The Care and Maintenance of a Small Planet. First edition. Norton & Company, 1972.
警告：这些引文格式不一定是100％准确.