APA (7th ed.) Citation

Williams, S. R. (1942). Hardness and hardness measurements. American Soc. for Metals.

Chicago Style (17th ed.) Citation

Williams, Samuel Robinson. Hardness and Hardness Measurements. Cleveland, Ohio: American Soc. for Metals, 1942.

MLA (9th ed.) Citation

Williams, Samuel Robinson. Hardness and Hardness Measurements. American Soc. for Metals, 1942.