APA Citation

Anderson, R. W. r. b. B. Gems their sources, descriptions and identification. Butterworths.

Chicago Style Citation

Anderson, Robert Webster revised by BW. Gems Their Sources, Descriptions and Identification. Butterworths.

MLA Citation

Anderson, Robert Webster revised by BW. Gems Their Sources, Descriptions and Identification. Butterworths.

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