Cita APA (7a ed.)

Horton, D. E. (1988). Underground crops: Long-term trends in production of roots and tubers (1st edition.). Winrock.

Cita Chicago Style (17a ed.)

Horton, Douglas E. Underground Crops: Long-term Trends in Production of Roots and Tubers. 1st edition. Morrilton: Winrock, 1988.

Cita MLA (8a ed.)

Horton, Douglas E. Underground Crops: Long-term Trends in Production of Roots and Tubers. 1st edition. Winrock, 1988.