APA Citatie

Radha,S, & Sankhyan,Amar Singh. (2004). Environmental challenges of the 21st century. Deep & Deep.

Chicago Style citaat

Radha,S, en Sankhyan,Amar Singh. Environmental Challenges of the 21st Century. New Delhi: Deep & Deep, 2004.

MLA citatie

Radha,S, en Sankhyan,Amar Singh. Environmental Challenges of the 21st Century. Deep & Deep, 2004.

Let op: Deze citaties zijn niet altijd 100% accuraat.