Hayes, V. C. (2019). The 12 biggest breakthroughs in military technology. 12 Story Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHayes, Vicki C. The 12 Biggest Breakthroughs in Military Technology. North Mankato, MN: 12 Story Library, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHayes, Vicki C. The 12 Biggest Breakthroughs in Military Technology. 12 Story Library, 2019.
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