Cita APA (7th ed.)

Knight, B. H., & Knight, R. G. (1955). Builders' materials (3rd ed.). Arnold.

Cita Chicago (17th ed.)

Knight, Bernard H., i R. G. Knight. Builders' Materials. 3rd ed. London: Arnold, 1955.

Cita MLA (8th ed.)

Knight, Bernard H., i R. G. Knight. Builders' Materials. 3rd ed. Arnold, 1955.