APA (7th ed.) Citation

PetzallhDavid E. Encyclopedia of sporting firearms.

Chicago Style (17th ed.) Citation

PetzallhDavid E. Encyclopedia of Sporting Firearms. New YorklbFacts on lifelc1991.

MLA (9th ed.) Citation

PetzallhDavid E. Encyclopedia of Sporting Firearms.

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