Leonardo da Vinci

MLA

Berl, Emmanuel, Jean Cocteau, and Halbo C Kool. Leonardo Da Vinci. Hasselt: Heideland-Orbis, 1971.

APA

Berl, E., Cocteau, J., & Kool, H. C. (1971). Leonardo da Vinci. Hasselt: Heideland-Orbis.

Chicago

Berl, Emmanuel, and Jean Cocteau. Leonardo Da Vinci. Translated by Halbo C Kool. Hasselt: Heideland-Orbis, 1971.