Ribbentrop, B. (1989). Forestry in British India. Indus Publishing.
芝加哥风格引文Ribbentrop, Berthold. Forestry in British India. New Delhi: Indus Publishing, 1989.
MLA引文Ribbentrop, Berthold. Forestry in British India. Indus Publishing, 1989.
警告：这些引文格式不一定是100％准确.