Gregg, R. N. (1983). The artist's studio in American painting: 1840 - 1983 ; Allentown Art Museum, September 25, 1983 - January 8, 1984 / organized by Richard N. Gregg. Allentown Art Museum.
Chicago-viite (17. p.)Gregg, Richard N. The Artist's Studio in American Painting: 1840 - 1983 ; Allentown Art Museum, September 25, 1983 - January 8, 1984 / Organized by Richard N. Gregg. Allentown: Allentown Art Museum, 1983.
MLA-viite (8. p.)Gregg, Richard N. The Artist's Studio in American Painting: 1840 - 1983 ; Allentown Art Museum, September 25, 1983 - January 8, 1984 / Organized by Richard N. Gregg. Allentown Art Museum, 1983.
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