APA (7th ed.) Citation

Knight, B. H., & Knight, R. G. (1948). Builders' materials (2nd ed.). Arnold.

Chicago Style (17th ed.) Citation

Knight, Bernard H., and R. G. Knight. Builders' Materials. 2nd ed. Lond.: Arnold, 1948.

MLA (8th ed.) Citation

Knight, Bernard H., and R. G. Knight. Builders' Materials. 2nd ed. Arnold, 1948.