Ribbentrop, B. (1989). Forestry in British India. Indus Publishing.
Lua i Stíl Chicago (17ú heag.)Ribbentrop, Berthold. Forestry in British India. New Delhi: Indus Publishing, 1989.
Lua MLA (9ú heag.)Ribbentrop, Berthold. Forestry in British India. Indus Publishing, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.