Trask, C. (2006). It's easy being green: A handbook for earth-friendly living. Gibbs Smith.
Style de citation Chicago (17e éd.)Trask, Crissy. It's Easy Being Green: A Handbook for Earth-friendly Living. Salt Lake City, Utah: Gibbs Smith, 2006.
Style de citation MLA (8e éd.)Trask, Crissy. It's Easy Being Green: A Handbook for Earth-friendly Living. Gibbs Smith, 2006.
Attention : ces citations peuvent ne pas être correctes à 100%.