Cita APA (7a ed.)

Trask, C. (2006). It's easy being green: A handbook for earth-friendly living. Gibbs Smith.

Cita Chicago Style (17a ed.)

Trask, Crissy. It's Easy Being Green: A Handbook for Earth-friendly Living. Salt Lake City, Utah: Gibbs Smith, 2006.

Cita MLA (8a ed.)

Trask, Crissy. It's Easy Being Green: A Handbook for Earth-friendly Living. Gibbs Smith, 2006.

Precaución: Estas citas no son 100% exactas.