Dolphin, W. D. (2002). Biological investigations: Form, function, diversity, and process (Sixth edition.). McGraw Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDolphin, Warren D. Biological Investigations: Form, Function, Diversity, and Process. Sixth edition. Boston: McGraw Hill, 2002.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDolphin, Warren D. Biological Investigations: Form, Function, Diversity, and Process. Sixth edition. McGraw Hill, 2002.
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