APA (7th ed.) Citation

O'Neill, C. (1988). Dogs on duty. National Geographic Society.

Chicago Style (17th ed.) Citation

O'Neill, Catherine. Dogs on Duty. Washington, D.C.: National Geographic Society, 1988.

MLA (9th ed.) Citation

O'Neill, Catherine. Dogs on Duty. National Geographic Society, 1988.

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