APA引文
De, A. K., & De, A. K. (2001). Environmental studies. New Age International.
Chicago Style (17th ed.) Citation
De, Anil Kumar, and Arnab Kumar De. Environmental Studies. Calcutta: New Age International, 2001.
MLA引文
De, Anil Kumar, and Arnab Kumar De. Environmental Studies. New Age International, 2001.
警告：這些引文格式不一定是100％准確.