APA (7th ed.) Citation

Hildebrandt, G., Hildebrandt, T., & Summers, I. (1979). The art of the brothers Hildebrandt. Ballantine Books.

Chicago Style (17th ed.) Citation

Hildebrandt, Greg, Tim Hildebrandt, and Ian Summers. The Art of the Brothers Hildebrandt. New York: Ballantine Books, 1979.

MLA (9th ed.) Citation

Hildebrandt, Greg, et al. The Art of the Brothers Hildebrandt. Ballantine Books, 1979.