Heartney, E. (1997). Alan Sonfist: History and the Landscape / Text by Eleanor Heartney ; Organized by Stephen Prokopoff.
Παραπομπή σε μορφή Chicago (17η εκδ.)Heartney, Eleanor. Alan Sonfist: History and the Landscape / Text by Eleanor Heartney ; Organized by Stephen Prokopoff. Iowa City, 1997.
Παραπομπή σε μορφή MLA (8th εκδ.)Heartney, Eleanor. Alan Sonfist: History and the Landscape / Text by Eleanor Heartney ; Organized by Stephen Prokopoff. 1997.
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