Chesterman, C. W. (1978). The Audubon Society field guide to North American rocks and minerals. Knopf.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChesterman, Charles W. The Audubon Society Field Guide to North American Rocks and Minerals. New York: Knopf, 1978.
एमएलए (8वां संस्करण) प्रशस्ति पत्रChesterman, Charles W. The Audubon Society Field Guide to North American Rocks and Minerals. Knopf, 1978.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.