@book{331783, author = {Busch, David D.}, title = {David Busch's quick snap guide to using digital SLR lenses}, publisher = {Thomson Course Technology,}, year = {c2008.}, address = {Boston, MA :}, note = {Includes index.}, url = {http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=263379} }