APA (7th ed.) Citation

Permutit Company. (1944). Water conditioning handbook. The Permutit company.

Chicago Style (17th ed.) Citation

Permutit Company. Water Conditioning Handbook. New York, N.Y.: The Permutit company, 1944.

MLA (9th ed.) Citation

Permutit Company. Water Conditioning Handbook. The Permutit company, 1944.