APA (7th ed.) Citation

(1997). Keys to soil taxonomy (7. ed.). Pocahontas Press.

Chicago Style (17th ed.) Citation

Keys to Soil Taxonomy. 7. ed. Blacksburg, Va: Pocahontas Press, 1997.

MLA (9th ed.) Citation

Keys to Soil Taxonomy. 7. ed. Pocahontas Press, 1997.

Warning: These citations may not always be 100% accurate.