Levinson, N., & Redheffer, R. M. (1970). Complex variables. Holden-Day.
Cita Chicago (17th ed.)Levinson, Norman, i Raymond M. Redheffer. Complex Variables. San Francisco: Holden-Day, 1970.
Cita MLA (9th ed.)Levinson, Norman, i Raymond M. Redheffer. Complex Variables. Holden-Day, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.