Cita APA (7a ed.)

Knight, B. H., & Knight, R. G. (1958). Builders materials. Arnold.

Cita Chicago Style (17a ed.)

Knight, Bernard Howard, y Rena G. Knight. Builders Materials. Londres: Arnold, 1958.

Cita MLA (9a ed.)

Knight, Bernard Howard, y Rena G. Knight. Builders Materials. Arnold, 1958.