Cita APA (7th ed.)

BEARD, E. G. C. PHILIPS RADIO AND TELEVISION MANUAL.

Cita Chicago (17th ed.)

BEARD, E. G. COMP. PHILIPS RADIO AND TELEVISION MANUAL. 2ND ED. PHILIPS, 1952. 776P.

Cita MLA (8th ed.)

BEARD, E. G. COMP. PHILIPS RADIO AND TELEVISION MANUAL.