Cita APA (7a ed.)

Oldershaw, C. (2008). Philip's gems of the world. Philip's.

Cita Chicago Style (17a ed.)

Oldershaw, Cally. Philip's Gems of the World. London: Philip's, 2008.

Cita MLA (9a ed.)

Oldershaw, Cally. Philip's Gems of the World. Philip's, 2008.