APA (7th ed.) Citation

Ramsay, J. D. (1941). Refractories, the backbone of industry ... North American Refractories Company.

Chicago Style (17th ed.) Citation

Ramsay, John David. Refractories, the Backbone of Industry ... Cleveland, O.: North American Refractories Company, 1941.

MLA (9th ed.) Citation

Ramsay, John David. Refractories, the Backbone of Industry ... North American Refractories Company, 1941.