Παραπομπή APA

Helszain, J. (1989). Ferrite phase shifters and control devices. McGraw-Hill.

Παραπομπή Chicago Style

Helszain, Joseph. Ferrite Phase Shifters and Control Devices. London: McGraw-Hill, 1989.

Παραπομπή MLA

Helszain, Joseph. Ferrite Phase Shifters and Control Devices. McGraw-Hill, 1989.