APA-ийн эшлэл(7 дахь хэвлэлт)

Oertel, R. (1968). Early Italian painting to 1400 with 175plates, 12 in color. Thames and Hudson.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Oertel, Robert. Early Italian Painting to 1400 with 175plates, 12 in Color. London: Thames and Hudson, 1968.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Oertel, Robert. Early Italian Painting to 1400 with 175plates, 12 in Color. Thames and Hudson, 1968.