Παραπομπή APA

Raj Vir Singh, -. (1991). Drainage and salinity control. Himanshu publications.

Παραπομπή Chicago Style

Raj Vir Singh, -. Drainage and Salinity Control. Newdelhi: Himanshu publications, 1991.

Παραπομπή MLA

Raj Vir Singh, -. Drainage and Salinity Control. Himanshu publications, 1991.