Edmondson, N. (2015). Black widow (2014), volume 3: Last days (Collected Issues.). Marvel Worldwide, Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEdmondson, Nathan. Black Widow (2014), Volume 3: Last Days. Collected Issues. Cleveland: Marvel Worldwide, Inc., 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEdmondson, Nathan. Black Widow (2014), Volume 3: Last Days. Collected Issues. Marvel Worldwide, Inc., 2015.
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