(1998). Corporate environmental management 1: Systems and strategies. London: Earthscan.
शिकागो स्टाइल उद्धरणCorporate Environmental Management 1: Systems and Strategies. London: Earthscan, 1998.
एमएलए उद्धरणCorporate Environmental Management 1: Systems and Strategies. London: Earthscan, 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.