Walker, R. G. (1986). Facies Models (2nd ed.). Geological Association of Canada Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWalker, Roger G. Facies Models. 2nd ed. Ontario: Geological Association of Canada Publications, 1986.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWalker, Roger G. Facies Models. 2nd ed. Geological Association of Canada Publications, 1986.
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