APA Edition Citation

Webster, R. (1983). Gems: Their sourse, descriptions and identification (4.).

Chicago Edition Citation

Webster, Robert. Gems: Their Sourse, Descriptions and Identification. 4. Methuen & Company, London, 1983.

MLA Edition Citation

Webster, Robert. Gems: Their Sourse, Descriptions and Identification. 4. 1983.

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