APA (7th ed.) Citation

Busch, D. D. (2009). David Busch's Canon EOS 50D: Guide to digital SLR photography. Course Technology PTR.

Chicago Style (17th ed.) Citation

Busch, David D. David Busch's Canon EOS 50D: Guide to Digital SLR Photography. Boston, MA: Course Technology PTR, 2009.

MLA (9th ed.) Citation

Busch, David D. David Busch's Canon EOS 50D: Guide to Digital SLR Photography. Course Technology PTR, 2009.