APA引文

Sharma, R. C. (1986). Environmental education (2nd revised ed.). Metropolitan.

Chicago Edition Citation

Sharma, R. C. Environmental Education. 2nd revised ed. New Delhi: Metropolitan, 1986.

MLA引文

Sharma, R. C. Environmental Education. 2nd revised ed. Metropolitan, 1986.

警告：这些引文格式不一定是100％准确.