APA (7th ed.) Citation

(1992). Keys to soil taxonomy (5. ed., 1. print.). Pocahontas Press.

Chicago Style (17th ed.) Citation

Keys to Soil Taxonomy. 5. ed., 1. print. Blacksburg, Va: Pocahontas Press, 1992.

MLA (9th ed.) Citation

Keys to Soil Taxonomy. 5. ed., 1. print. Pocahontas Press, 1992.