Cita APA (7a ed.)

Geffe, P. R. (1964). Simplified modern filter design. Iliffe.

Cita Chicago Style (17a ed.)

Geffe, Philip R. Simplified Modern Filter Design. London: Iliffe, 1964.

Cita MLA (9a ed.)

Geffe, Philip R. Simplified Modern Filter Design. Iliffe, 1964.