Donnelly, A., Dalal-Clayton, B., & Hughes, R. (1998). A directory of impact assessment guidelines (2nd ed.). London: International Institute for Environment and Development.
Παραπομπή Chicago StyleDonnelly, Annie, Barry Dalal-Clayton, and Ross Hughes. A Directory of Impact Assessment Guidelines. 2nd ed. London: International Institute for Environment and Development, 1998.
Παραπομπή MLADonnelly, Annie, Barry Dalal-Clayton, and Ross Hughes. A Directory of Impact Assessment Guidelines. 2nd ed. London: International Institute for Environment and Development, 1998.
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