APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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