APA (7th ed.) Citation

Titian, a., Pignatti, T., & Piper, D. (1981). Titian. Rizzoli.

Chicago Style (17th ed.) Citation

Titian, approximately, Terisio Pignatti, and David Piper. Titian. New York: Rizzoli, 1981.

MLA (9th ed.) Citation

Titian, approximately, et al. Titian. Rizzoli, 1981.