Ayala, V. (2019). Marvel knights: 20th (Collected Mini-Series.). Marvel Worldwide, Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAyala, Vita. Marvel Knights: 20th. Collected Mini-Series. Cleveland: Marvel Worldwide, Inc., 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAyala, Vita. Marvel Knights: 20th. Collected Mini-Series. Marvel Worldwide, Inc., 2019.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.