Styl cytowania APA

Dutta, A., Dutta, S., & Pandey, P. N. (2005). Environmental issues and challenges.

Styl cytowania Chicago

Dutta, Abhijit, Sunita Dutta, i P N. Pandey. Environmental Issues and Challenges. Newdelhi, A P H Publishing, 2005.

Styl cytowania MLA

Dutta, Abhijit, et al. Environmental Issues and Challenges. 2005.