APA (7th ed.) Citation

Wallace, R. (1971). The world of Leonardo, 1452-1519. Time-Life International.

Chicago Style (17th ed.) Citation

Wallace, Robert. The World of Leonardo, 1452-1519. Nederland, B. V: Time-Life International, 1971.

MLA (9th ed.) Citation

Wallace, Robert. The World of Leonardo, 1452-1519. Time-Life International, 1971.