Cita APA (7a ed.)

Richards, L. (1954). Diagnosis and improvement of saline and alkali soil. USDA.

Cita Chicago Style (17a ed.)

Richards, L.A. Diagnosis and Improvement of Saline and Alkali Soil. Washington: USDA, 1954.

Cita MLA (8a ed.)

Richards, L.A. Diagnosis and Improvement of Saline and Alkali Soil. USDA, 1954.