APA (7th ed.) Citation

Guimard, H., Naylor, G., & Brunhammer, Y. (1978). Hector Guimard. Rizzoli.

Chicago Style (17th ed.) Citation

Guimard, Hector, Gillian Naylor, and Yvonne Brunhammer. Hector Guimard. New York: Rizzoli, 1978.

MLA (9th ed.) Citation

Guimard, Hector, et al. Hector Guimard. Rizzoli, 1978.