Clark, A. W. (1985). Longman dictionary of geography: Human and physical. Longman.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रClark, Audrey W. Longman Dictionary of Geography: Human and Physical. Essex, England: Longman, 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रClark, Audrey W. Longman Dictionary of Geography: Human and Physical. Longman, 1985.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.