APA (7 वां संस्करण) प्रशस्ति पत्र

Mensch, B. (2002). Made in USA: 1970 - 2001 ; Keith Haring, Robert Longo, Kenny Scharf, Bill Beckley. Galerie Hans Mayer.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Mensch, Bernhard. Made in USA: 1970 - 2001 ; Keith Haring, Robert Longo, Kenny Scharf, Bill Beckley. Düsseldorf: Galerie Hans Mayer, 2002.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Mensch, Bernhard. Made in USA: 1970 - 2001 ; Keith Haring, Robert Longo, Kenny Scharf, Bill Beckley. Galerie Hans Mayer, 2002.