APA (7th ed.) Citation

Whitehill, W. M., Nichols, F. D., & Palladio, A. (1976). Palladio in America. Electa.

Chicago Style (17th ed.) Citation

Whitehill, Walter Muir, Frederick Doveton Nichols, and Andrea Palladio. Palladio in America. Milan: Electa, 1976.

MLA (9th ed.) Citation

Whitehill, Walter Muir, et al. Palladio in America. Electa, 1976.