APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc, & Vaz, S. G. (2012). Environment: Why read the classics. Greenleaf Pub..

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc, ба Sofia Guedes Vaz. Environment: Why Read the Classics. Sheffield, South Yorkshire, England: Greenleaf Pub., 2012.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc, ба Sofia Guedes Vaz. Environment: Why Read the Classics. Greenleaf Pub., 2012.