1. The sane alternative;Robertson,1978
2. For the common good, redirecting the economy toward community, the environment, and a sustainable future;Daley,1990
3. Factor four, doubling wealth, halving resource use;von Weizsäcker,1997
4. Green political thought;Dobson,1990
5. The economic foundations of an ecological society;Fotopoulos;Society and Nature,1992