APA (7th ed.) Citation

Pogorelov, A. V., Kra, I., & Zaustinskiy, E. (1979). Hilbert's fourth problem. V. H. Winston distributed solely by Halsted Press.

Chicago Style (17th ed.) Citation

Pogorelov, A. V., Irwin Kra, and Eugene Zaustinskiy. Hilbert's Fourth Problem. Washington New York: V. H. Winston distributed solely by Halsted Press, 1979.

MLA (9th ed.) Citation

Pogorelov, A. V., et al. Hilbert's Fourth Problem. V. H. Winston distributed solely by Halsted Press, 1979.