APA (7th ed.) Citation

Oldershaw, C. (2003). Guide to gems. Philip's.

Chicago Style (17th ed.) Citation

Oldershaw, Cally. Guide to Gems. London: Philip's, 2003.

MLA (8th ed.) Citation

Oldershaw, Cally. Guide to Gems. Philip's, 2003.

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