Whitney, E. D., & Duffus, J. E. (1995). Compendium of beet diseases and insects (3a. ed.). APS.
Cita Chicago (17th ed.)Whitney, E. D., i James E. Duffus. Compendium of Beet Diseases and Insects. 3a. ed. Minneapolis: APS, 1995.
Cita MLA (9th ed.)Whitney, E. D., i James E. Duffus. Compendium of Beet Diseases and Insects. 3a. ed. APS, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.