James, S., Lahti, T., & Robèrt, K. (2004). The natural step for communities: How cities and towns can change to sustainable practices. New Society Publishers.
Citace podle Chicago (17th ed.)James, Sarah, Torbjörn Lahti, a Karl-Hendrik Robèrt. The Natural Step for Communities: How Cities and Towns Can Change to Sustainable Practices. Gabriola Island, B.C.: New Society Publishers, 2004.
Citace podle MLA (9th ed.)James, Sarah, et al. The Natural Step for Communities: How Cities and Towns Can Change to Sustainable Practices. New Society Publishers, 2004.
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