APA (7th ed.) Citation

Grey, C. (2012). Christopher Grey's posing, composition, and cropping: Master techniques for digital portrait photographers / Christopher Grey. Amherst Media, Inc..

Chicago Style (17th ed.) Citation

Grey, Christopher. Christopher Grey's Posing, Composition, and Cropping: Master Techniques for Digital Portrait Photographers / Christopher Grey. Buffalo, NY: Amherst Media, Inc., 2012.

MLA (8th ed.) Citation

Grey, Christopher. Christopher Grey's Posing, Composition, and Cropping: Master Techniques for Digital Portrait Photographers / Christopher Grey. Amherst Media, Inc., 2012.

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