APA aipamena

Rubber Plantation Department. (1962). Rubber krishi. Rubber Plantation Department.

Chicago Style aipamena

Rubber Plantation Department. Rubber Krishi. Kerala: Rubber Plantation Department, 1962.

MLA aipamena

Rubber Plantation Department. Rubber Krishi. Rubber Plantation Department, 1962.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.