Παραπομπή σε μορφή APA (7η εκδ.)

Kwakkelstein, M. W. (1994). Leonardo da Vinci as a physiognomist: Theory and drawing practice / by Michael W. Kwakkelstein. Primavera Pers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kwakkelstein, Michael W. Leonardo Da Vinci as a Physiognomist: Theory and Drawing Practice / by Michael W. Kwakkelstein. Leiden: Primavera Pers, 1994.

Παραπομπή σε μορφή MLA (8th εκδ.)

Kwakkelstein, Michael W. Leonardo Da Vinci as a Physiognomist: Theory and Drawing Practice / by Michael W. Kwakkelstein. Primavera Pers, 1994.