APA (7th ed.) Citation

Davis, P. (1999). Beyond the zone system (Fourth edition.). Focal Press.

Chicago Style (17th ed.) Citation

Davis, Phil. Beyond the Zone System. Fourth edition. Boston: Focal Press, 1999.

MLA (9th ed.) Citation

Davis, Phil. Beyond the Zone System. Fourth edition. Focal Press, 1999.

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