APA (7 वां संस्करण) प्रशस्ति पत्र

Lewis, M. (2020). What is to be done: Mark Bradford, Ed Ruscha, William H. Johnson. Afterall.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Lewis, Mark. "What Is to Be Done: Mark Bradford, Ed Ruscha, William H. Johnson." Afterall 2020.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Lewis, Mark. "What Is to Be Done: Mark Bradford, Ed Ruscha, William H. Johnson." Afterall, 2020.