APA (7e ed.) Bronvermelding

Joseph, K. (2004). Essentials of environmental studies. Pearson Education.

Chicago (17e ed.) Bronvermelding

Joseph, Kurian. Essentials of Environmental Studies. Delhi: Pearson Education, 2004.

MLA (9e ed.) Bronvermelding

Joseph, Kurian. Essentials of Environmental Studies. Pearson Education, 2004.

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