APA (7th ed.) Citation

Whitaker, E. H., Purdue, S. L., & Sanderson, M. (2014). The adventures of Sammy Soil: A coloring book story (Slightly revised by NRCS.). United States Department of Agriculture.

Chicago Style (17th ed.) Citation

Whitaker, Ernest H., Sandra L. Purdue, and Melanie Sanderson. The Adventures of Sammy Soil: A Coloring Book Story. Slightly revised by NRCS. [Washington, DC]: United States Department of Agriculture, 2014.

MLA (9th ed.) Citation

Whitaker, Ernest H., et al. The Adventures of Sammy Soil: A Coloring Book Story. Slightly revised by NRCS. United States Department of Agriculture, 2014.