Gerrold, D. (2001). Worlds of wonder: How to write science fiction & fantasy. Writer's Digest Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGerrold, David. Worlds of Wonder: How to Write Science Fiction & Fantasy. Cincinnati, OH: Writer's Digest Books, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGerrold, David. Worlds of Wonder: How to Write Science Fiction & Fantasy. Writer's Digest Books, 2001.
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