APA

Richards J., Cram D. J. & Hammond G. S. (1967). Elements of organic chemistry. New York: McGraw-Hill.

Chicago

Richards John, Cram Donald J and Hammond George Simms. 1967. Elements of organic chemistry. New York: McGraw-Hill.

Harvard

Richards J., Cram D. J. and Hammond G. S. (1967). Elements of organic chemistry. New York: McGraw-Hill.

MLA

Richards John, Cram Donald J and Hammond George Simms. Elements of organic chemistry. New York: McGraw-Hill. 1967.