APA (7th ed.) Citation

Worthen, E. L. (1948). Farm soils: Their management and fertilization (4. ed.). Wiley u.a.

Chicago Style (17th ed.) Citation

Worthen, Edmund L. Farm Soils: Their Management and Fertilization. 4. ed. New York u.a: Wiley u.a, 1948.

MLA (9th ed.) Citation

Worthen, Edmund L. Farm Soils: Their Management and Fertilization. 4. ed. Wiley u.a, 1948.