Cita APA (7a ed.)

Froehlich, J. P. (1969). Information transmittal and communications systems. Holt, Rinehart and Winston, Inc.

Cita Chicago Style (17a ed.)

Froehlich, John Paul. Information Transmittal and Communications Systems. New York: Holt, Rinehart and Winston, Inc, 1969.

Cita MLA (9a ed.)

Froehlich, John Paul. Information Transmittal and Communications Systems. Holt, Rinehart and Winston, Inc, 1969.