APA (7th ed.) Citation

Walton, J. (1952). Physical gemmology. Pitman.

Chicago Style (17th ed.) Citation

Walton, James. Physical Gemmology. London: Pitman, 1952.

MLA (9th ed.) Citation

Walton, James. Physical Gemmology. Pitman, 1952.

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