APA (7th ed.) Citation

Simpson, J. E., Helmkamp, G. K., & Hansch, C. (1975). An outline of organic chemistry: Problems and answers (3d ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Simpson, John Ernest, George K. Helmkamp, and Corwin Hansch. An Outline of Organic Chemistry: Problems and Answers. 3d ed. New York: McGraw-Hill, 1975.

MLA (9th ed.) Citation

Simpson, John Ernest, et al. An Outline of Organic Chemistry: Problems and Answers. 3d ed. McGraw-Hill, 1975.