Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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