Work cat.: 92035724: Pezzey, J. Sustainable development concepts, c1992.

IAC.

LC database, Oct. 8, 1992.

Ludescher, C.M. Perceived meanings of "ecologically sustainable development" within the CRC Reef Research Center, 1996.

Long Island University Institute for Sustainable Development website, July 6, 2005: homepage ("Smart growth" is a planning concept that has livability and sustainability as its major tenets).

ESD design guide, c2007.

Wikipedia, Sept. 24, 2007 (ESD can refer to Ecologically sustainable development; Sustainable development is defined as balancing the fulfillment of human needs with the protection of the natural environment so that these needs can be met not only in the present, but in the indefinite future)

Hennepin

Example under Sustainability