Cita APA (7a ed.)

Huelsman, L. P., & Allen, P. E. (1980). Introduction to the theory and design of active filters. McGraw-Hill.

Cita Chicago Style (17a ed.)

Huelsman, Lawrence P., y P. E. Allen. Introduction to the Theory and Design of Active Filters. New York [etc.]: McGraw-Hill, 1980.

Cita MLA (9a ed.)

Huelsman, Lawrence P., y P. E. Allen. Introduction to the Theory and Design of Active Filters. McGraw-Hill, 1980.