APA (7th ed.) Citation

Smith, G. F. H. (1958). Gemstones (13. ed., rev. and reset.). Methuen.

Chicago Style (17th ed.) Citation

Smith, Georg Frederick Herbert. Gemstones. 13. ed., rev. and reset. London: Methuen, 1958.

MLA (9th ed.) Citation

Smith, Georg Frederick Herbert. Gemstones. 13. ed., rev. and reset. Methuen, 1958.