APA (7th ed.) Citation

Lenzen, G. (1970). The history of diamond production and the diamond trade / by G. Lenzen. Barrie and Jenkins.

Chicago Style (17th ed.) Citation

Lenzen, G. The History of Diamond Production and the Diamond Trade / by G. Lenzen. Barrie and Jenkins, 1970.

MLA (9th ed.) Citation

Lenzen, G. The History of Diamond Production and the Diamond Trade / by G. Lenzen. Barrie and Jenkins, 1970.

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