APA (7th ed.) Citation

Christman, E. H. (1972). A primer on refraction. Thomas.

Chicago Style (17th ed.) Citation

Christman, Ernest H. A Primer on Refraction. Springfield, Ill: Thomas, 1972.

MLA (9th ed.) Citation

Christman, Ernest H. A Primer on Refraction. Thomas, 1972.

Warning: These citations may not always be 100% accurate.