Osborne, M. P. (2012). Dinosaurs: A nonfiction companion to magic tree house #1: dinosaurs before dark.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOsborne, Mary Pope. Dinosaurs: A Nonfiction Companion to Magic Tree House #1: Dinosaurs Before Dark. 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOsborne, Mary Pope. Dinosaurs: A Nonfiction Companion to Magic Tree House #1: Dinosaurs Before Dark. 2012.
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