Dyfyniad APA

Royal Academy of Arts (Great Britain) & Sotheby, Parke-Bernet Los Angeles. (1978). Selected works of art from the Robert von Hirsch collection. Sotheby's.

Dyfyniad Arddull Chicago

Royal Academy of Arts (Great Britain) and Parke-Bernet Los Angeles Sotheby. Selected Works of Art from the Robert Von Hirsch Collection. London: Sotheby's, 1978.

Dyfyniad MLA

Royal Academy of Arts (Great Britain) and Parke-Bernet Los Angeles Sotheby. Selected Works of Art from the Robert Von Hirsch Collection. Sotheby's, 1978.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.