APA (7th ed.) Citation

Smith, H. G., & Phillips, F. C. (1962). Gemstones. Methuen & Co. Ltd.

Chicago Style (17th ed.) Citation

Smith, Herbert G.F, and F. C. Phillips. Gemstones. London: Methuen & Co. Ltd, 1962.

MLA (9th ed.) Citation

Smith, Herbert G.F, and F. C. Phillips. Gemstones. Methuen & Co. Ltd, 1962.