APA-ийн эшлэл(7 дахь хэвлэлт)

Saxena, y. (2004). Environment explained: Meaning and definitions of terms and themes. Excel.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Saxena, y. Environment Explained: Meaning and Definitions of Terms and Themes. New Delhi: Excel, 2004.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Saxena, y. Environment Explained: Meaning and Definitions of Terms and Themes. Excel, 2004.