Provey, J., & Lockwood, O. (2008). The little green book: 365 ways to love the planet (First edition.). Creative Homeowner.
Cita Chicago Style (17a ed.)Provey, Joe, y Owen Lockwood. The Little Green Book: 365 Ways to Love the Planet. First edition. Upper Saddle River, N.J.: Creative Homeowner, 2008.
Cita MLA (8a ed.)Provey, Joe, y Owen Lockwood. The Little Green Book: 365 Ways to Love the Planet. First edition. Creative Homeowner, 2008.
Precaución: Estas citas no son 100% exactas.