APA (7th ed.) Citation

Langdon, H., & Holberton, P. (1984). The Knopf traveler's guides to art: Italy (First American edition.). Knopf.

Chicago Style (17th ed.) Citation

Langdon, Helen, and Paul Holberton. The Knopf Traveler's Guides to Art: Italy. First American edition. New York: Knopf, 1984.

MLA (9th ed.) Citation

Langdon, Helen, and Paul Holberton. The Knopf Traveler's Guides to Art: Italy. First American edition. Knopf, 1984.