Brian Williams. (2004). Science and Technology: Biggest & Best (Biggest & Best series). Miles Kelly Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBrian Williams. Science and Technology: Biggest & Best (Biggest & Best Series). Miles Kelly Publishing, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBrian Williams. Science and Technology: Biggest & Best (Biggest & Best Series). Miles Kelly Publishing, 2004.
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