Cita APA (7a ed.)

Croft, T., & Purdy, R. B. (1939). Practical heat (2d ed.). McGraw-Hill Book Company, inc.

Cita Chicago Style (17a ed.)

Croft, Terrell, y Randall Brookner Purdy. Practical Heat. 2d ed. New York: McGraw-Hill Book Company, inc, 1939.

Cita MLA (8a ed.)

Croft, Terrell, y Randall Brookner Purdy. Practical Heat. 2d ed. McGraw-Hill Book Company, inc, 1939.