Oertel, R. (1968). Early Italian painting to 1400 with 175plates, 12 in color. Thames and Hudson.
Chicago-viite (17. p.)Oertel, Robert. Early Italian Painting to 1400 with 175plates, 12 in Color. London: Thames and Hudson, 1968.
MLA-viite (9. p.)Oertel, Robert. Early Italian Painting to 1400 with 175plates, 12 in Color. Thames and Hudson, 1968.
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