Sladen, M. (1996). A Family Affair: Mark Sladen on Richard Billingham's "Ray's a Laugh. frieze.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSladen, Mark. "A Family Affair: Mark Sladen on Richard Billingham's "Ray's a Laugh." Frieze 1996.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSladen, Mark. "A Family Affair: Mark Sladen on Richard Billingham's "Ray's a Laugh." Frieze, 1996.
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