APA

Smith A., Kendall J. & Ehret William F. (1931). Smith's introductory college chemistry. New York and London: The Century co.

Chicago

Smith Alexander, Kendall James and Ehret William F. 1931. Smith's introductory college chemistry. New York and London: The Century co.

Harvard

Smith A., Kendall J. and Ehret William F. (1931). Smith's introductory college chemistry. New York and London: The Century co.

MLA

Smith Alexander, Kendall James and Ehret William F. Smith's introductory college chemistry. New York and London: The Century co. 1931.