APA (7th ed.) Citation

Spiegel, M. R. (1993). Complex Variables (2nd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Spiegel, Murray R. Complex Variables. 2nd ed. New York: McGraw-Hill, 1993.

MLA (9th ed.) Citation

Spiegel, Murray R. Complex Variables. 2nd ed. McGraw-Hill, 1993.