Fien, J. (1993). Environmental education: A pathway to sustainability. Deakin University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFien, John. Environmental Education: A Pathway to Sustainability. Geelong, Vic: Deakin University, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFien, John. Environmental Education: A Pathway to Sustainability. Deakin University, 1993.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.