Horvitz, R. J. (1973). Nature As Artifact: Alan Sonfist / von Robert Joseph Horvitz. Artforum.
Chicagoスタイル(17版)引用形式Horvitz, Robert Joseph. "Nature As Artifact: Alan Sonfist / Von Robert Joseph Horvitz." Artforum 1973.
MLA(8版)引用形式Horvitz, Robert Joseph. "Nature As Artifact: Alan Sonfist / Von Robert Joseph Horvitz." Artforum, 1973.
警告: この引用は必ずしも正確ではありません.