Philadelphia Museum of Art, Hiesinger, U. W., & Percy, A. (1980). A Scholar collects: Selections from the Anthony Morris Clark bequest. Philadelphia Museum of Art.
Chicago Style aipamenaPhiladelphia Museum of Art, Ulrich W. Hiesinger, and Ann Percy. A Scholar Collects: Selections from the Anthony Morris Clark Bequest. Philadelphia: Philadelphia Museum of Art, 1980.
MLA aipamenaPhiladelphia Museum of Art, et al. A Scholar Collects: Selections from the Anthony Morris Clark Bequest. Philadelphia Museum of Art, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.