*Durer's cities: Nuremberg and Venice : Ann Arbor, the University of Michigan Museum of Art : September 19-October 17, 1971 / essays and catalogue by Clifton C. Olds, Egon Verheyen, Warren Tresidder ; edited by Robert A. Yassin Ann Arbor : The University of Michigan Museum of Art, c1971 63 p., [25] c. di tav. : ill. ; 26 cm
