APA (7th ed.) Citation

Witham, G. S. (1942). Modern Pulp and paper Making: A practical treatise (2d ed. (Second printing, 1949).).

Chicago Style (17th ed.) Citation

Witham, George S. Modern Pulp and Paper Making: A Practical Treatise. 2d ed. (Second printing, 1949). N. Y, 1942.

MLA (9th ed.) Citation

Witham, George S. Modern Pulp and Paper Making: A Practical Treatise. 2d ed. (Second printing, 1949). 1942.