APA (7th ed.) Citation

Preston, G. (1997). Wilderness first aid: When you can't call 911. Falcon.

Chicago Style (17th ed.) Citation

Preston, Gilbert. Wilderness First Aid: When You Can't Call 911. Helena: Falcon, 1997.

MLA (9th ed.) Citation

Preston, Gilbert. Wilderness First Aid: When You Can't Call 911. Falcon, 1997.