APA (7th ed.) Citation

Friedenthal, R. (1987). Leonardo (1a. ed.). Salvat.

Chicago Style (17th ed.) Citation

Friedenthal, Richard. Leonardo. 1a. ed. Barcelona: Salvat, 1987.

MLA (9th ed.) Citation

Friedenthal, Richard. Leonardo. 1a. ed. Salvat, 1987.