APA (7th ed.) Citation

Loy, W. G., Allan, S., & Patton, C. P. (1976). Atlas of Oregon. University of Oregon.

Chicago Style (17th ed.) Citation

Loy, William G., Stuart Allan, and Clyde P. Patton. Atlas of Oregon. Eugene: University of Oregon, 1976.

MLA (9th ed.) Citation

Loy, William G., et al. Atlas of Oregon. University of Oregon, 1976.