Penck, A. Standart 1970: A.R. Penck. 1940 - 1991.(1998).
Cita Chicago (17th ed.)Penck, A.R. "Standart 1970: A.R. Penck." 1940 - 1991.(1998) .
Cita MLA (8th ed.)Penck, A.R. "Standart 1970: A.R. Penck." 1940 - 1991.(1998), .
Atenció: Aquestes cites poden no estar 100% correctes.