APA (7th ed.) Citation

Burago, D., Burago, I. D., & Ivanov, S. (2001). A course in metric geometry. American Mathematical Society.

Chicago Style (17th ed.) Citation

Burago, Dmitri, I︠U︡. D. Burago, and Sergeĭ Ivanov. A Course in Metric Geometry. Providence, RI: American Mathematical Society, 2001.

MLA (8th ed.) Citation

Burago, Dmitri, et al. A Course in Metric Geometry. American Mathematical Society, 2001.