APA (7th ed.) Citation

May, W. G. (1973). Mountain search and rescue techniques ([1st ed.].). Rocky Mountain Rescue Group.

Chicago Style (17th ed.) Citation

May, W. G. Mountain Search and Rescue Techniques. [1st ed.]. Boulder, Colo.: Rocky Mountain Rescue Group, 1973.

MLA (9th ed.) Citation

May, W. G. Mountain Search and Rescue Techniques. [1st ed.]. Rocky Mountain Rescue Group, 1973.