interview with William H. Helfand by Innis Howe Shoemaker ; catalogue by William H. Helf and John Ittmann

Philadelphia Museum of Art , In association with Yale University Press, 2011 Philadelphia Museum of Art bulletin n.s. ; no. 3

: pbk

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von David L. Cowen und William H. Helfand

DuMont 1991, c1990 2. Aufl

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by William H. Helfand

American Institute of the History of Pharmacy , 1978 , c1978 Publication (American Institute of the History of Pharmacy) new ser., no. 4

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