APA (7th ed.) Citation

Optimum. (1981). Art of Leonardo Da Vinci. Hamlyn.

Chicago Style (17th ed.) Citation

Optimum. Art of Leonardo Da Vinci. Hong Kong: Hamlyn, 1981.

MLA (9th ed.) Citation

Optimum. Art of Leonardo Da Vinci. Hamlyn, 1981.

Warning: These citations may not always be 100% accurate.