Barker, K. (1984). Material feelings: Ralph Humprey's recent works. Art in America.
Chicago-Zitierstil (17. Ausg.)Barker, Kenneth. "Material Feelings: Ralph Humprey's Recent Works." Art in America 1984.
MLA-Zitierstil (8. Ausg.)Barker, Kenneth. "Material Feelings: Ralph Humprey's Recent Works." Art in America, 1984.
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