Kidwell, M. (2015). 68 (2011), volume 4: Rule of war (Collected.). Image Comics.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKidwell, Mark. 68 (2011), Volume 4: Rule of War. Collected. Cleveland: Image Comics, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKidwell, Mark. 68 (2011), Volume 4: Rule of War. Collected. Image Comics, 2015.
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