Cita APA (7th ed.)

Pennisi, L. L. (1963). Elements of complex variables. Holt, Rinehart and Winston.

Cita Chicago (17th ed.)

Pennisi, Louis L. Elements of Complex Variables. New York: Holt, Rinehart and Winston, 1963.

Cita MLA (9th ed.)

Pennisi, Louis L. Elements of Complex Variables. Holt, Rinehart and Winston, 1963.