APA (7th ed.) Citation

Axler, S., Bourdon, P., & Ramey, W. (1992). Harmonic Function Theory. Springer New York : Imprint: Springer.

Chicago Style (17th ed.) Citation

Axler, Sheldon, Paul Bourdon, and Wade Ramey. Harmonic Function Theory. New York, NY: Springer New York : Imprint: Springer, 1992.

MLA (8th ed.) Citation

Axler, Sheldon, et al. Harmonic Function Theory. Springer New York : Imprint: Springer, 1992.