Petts, J. (1999). Handbook of environmental impact assessment: :v.1 environmental impact assessment process,methods and potential. Blackwell Science.
शिकागो स्टाइल उद्धरणPetts, Judith. Handbook of Environmental Impact Assessment: :v.1 Environmental Impact Assessment Process,methods and Potential. London: Blackwell Science, 1999.
एमएलए उद्धरणPetts, Judith. Handbook of Environmental Impact Assessment: :v.1 Environmental Impact Assessment Process,methods and Potential. Blackwell Science, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.