Eisler, B. (2017). Zero sum: A John Rain novel (First edition.). Thomas & Mercer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEisler, Barry. Zero Sum: A John Rain Novel. First edition. Seattle: Thomas & Mercer, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEisler, Barry. Zero Sum: A John Rain Novel. First edition. Thomas & Mercer, 2017.
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