Παραπομπή APA

Vimlesh Chaudhary. (2000). Environmental protection. Pointer publishers.

Παραπομπή Chicago Style

Vimlesh Chaudhary. Environmental Protection. Jaipur: Pointer publishers, 2000.

Παραπομπή MLA

Vimlesh Chaudhary. Environmental Protection. Pointer publishers, 2000.