APA (7th ed.) Citation

Hill, B., & Hill, R. (1974). Indian petroglyphs of the Pacific Northwest. Hancock House Publishers.

Chicago Style (17th ed.) Citation

Hill, Beth, and Ray Hill. Indian Petroglyphs of the Pacific Northwest. Saanichton, B.C.: Hancock House Publishers, 1974.

MLA (8th ed.) Citation

Hill, Beth, and Ray Hill. Indian Petroglyphs of the Pacific Northwest. Hancock House Publishers, 1974.