Παραπομπή APA

Richards, L. A. (1968). Diagnosis and improvement of saline and alkali soils. Oxford & IBH publishing company.

Παραπομπή Chicago Style

Richards, L A. Diagnosis and Improvement of Saline and Alkali Soils. Calcutta: Oxford & IBH publishing company, 1968.

Παραπομπή MLA

Richards, L A. Diagnosis and Improvement of Saline and Alkali Soils. Oxford & IBH publishing company, 1968.