APA (7th ed.) Citation

(1977). Soil nitrogen (Minor rev.). American Soc. of Agronomy.

Chicago Style (17th ed.) Citation

Soil Nitrogen. Minor rev. Madison, Wis: American Soc. of Agronomy, 1977.

MLA (9th ed.) Citation

Soil Nitrogen. Minor rev. American Soc. of Agronomy, 1977.