Cita APA (7a ed.)

Hardenburg, E. V. (1949). Potato production. Comstock.

Cita Chicago Style (17a ed.)

Hardenburg, E. V. Potato Production. Ithaca: Comstock, 1949.

Cita MLA (8a ed.)

Hardenburg, E. V. Potato Production. Comstock, 1949.