Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.