APA (7th ed.) Citation

Berger, M., Pansu, P., Berry, J., & Saint Raymond, X. (1984). Problems in Geometry. Springer New York.

Chicago Style (17th ed.) Citation

Berger, Marcel, P. Pansu, Jean-Pic Berry, and Xavier Saint Raymond. Problems in Geometry. New York, NY: Springer New York, 1984.

MLA (9th ed.) Citation

Berger, Marcel, et al. Problems in Geometry. Springer New York, 1984.