APA (7th ed.) Citation

Kocher, A. E., Carpenter, E. . . J., & Taylor, K. . . S. (1926). Soil survey of Clackamas County, Oregon. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Kocher, A. E., E J. Carpenter, and K S. Taylor. Soil Survey of Clackamas County, Oregon. Washington: U.S. Govt. Print. Off, 1926.

MLA (9th ed.) Citation

Kocher, A. E., et al. Soil Survey of Clackamas County, Oregon. U.S. Govt. Print. Off, 1926.