APA (7th ed.) Citation

Lehmann, E. L., & Casella, G. (1998). Theory of point estimation (2nd ed.). Springer.

Chicago Style (17th ed.) Citation

Lehmann, E. L., and George Casella. Theory of Point Estimation. 2nd ed. New York: Springer, 1998.

MLA (9th ed.) Citation

Lehmann, E. L., and George Casella. Theory of Point Estimation. 2nd ed. Springer, 1998.