Aldridge, S. (1996). The Thread of life: The story of genes and genetic engineering. Cambridge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAldridge, Susan. The Thread of Life: The Story of Genes and Genetic Engineering. New York: Cambridge, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAldridge, Susan. The Thread of Life: The Story of Genes and Genetic Engineering. Cambridge, 1996.
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