Spencer, N. (2017). Captain america: sam wilson (2015), volume 4: Sam wilson vol. 4 - #takebacktheshield - special (Collected.). Marvel Worldwide, Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpencer, Nick. Captain America: Sam Wilson (2015), Volume 4: Sam Wilson Vol. 4 - #takebacktheshield - Special. Collected. Cleveland: Marvel Worldwide, Inc., 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpencer, Nick. Captain America: Sam Wilson (2015), Volume 4: Sam Wilson Vol. 4 - #takebacktheshield - Special. Collected. Marvel Worldwide, Inc., 2017.
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