Oey, E. M. (1996). Sumatra: Island of adventure ([2nd ed.].). Passport Books.
芝加哥风格引文Oey, Eric M. Sumatra: Island of Adventure. [2nd ed.]. Lincolnwood, Ill: Passport Books, 1996.
MLA引文Oey, Eric M. Sumatra: Island of Adventure. [2nd ed.]. Passport Books, 1996.
警告：这些引文格式不一定是100％准确.