Hughes, V. V. t. b. J. L. e. b. N. F. Jurassic and Cretaceous floras and climates of the Earth. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHughes, V.A. Vakhrameev translated by Ju.V. Litvinov edited by Norman F. Jurassic and Cretaceous Floras and Climates of the Earth. Cambridge University Press.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHughes, V.A. Vakhrameev translated by Ju.V. Litvinov edited by Norman F. Jurassic and Cretaceous Floras and Climates of the Earth. Cambridge University Press.
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