Cita APA (7th ed.)
Berlin, H. M. (1985). 555 timer applications sourcebook, with experiments. BPB Pub.
Cita Chicago (17th ed.)
Berlin, Howard M. 555 Timer Applications Sourcebook, with Experiments. New Delhi: BPB Pub, 1985.
Cita MLA (9th ed.)
Berlin, Howard M. 555 Timer Applications Sourcebook, with Experiments. BPB Pub, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.