Cita APA (7a ed.)

Busch, D. D. (2011). David Busch's compact field guide for the Nikon D90. Course Technology PTR.

Cita Chicago Style (17a ed.)

Busch, David D. David Busch's Compact Field Guide for the Nikon D90. Boston, MA: Course Technology PTR, 2011.

Cita MLA (9a ed.)

Busch, David D. David Busch's Compact Field Guide for the Nikon D90. Course Technology PTR, 2011.