Modern Radio servicing : a practical text on the theory construction and use of modern radio servicing equipment:the rapid systematic methods and technique of radio servicing in all its branches and tested method of selling radio service work to the public /

By Ghirardi, Alfred A.. Radio technical publishing co New York city, 1932 . ix, 182 p front.

Radio physics course; an elementary text book on electricity and radio,

By Ghirardi, Alfred A.. New York city, Radio technical publishing co., 1931 . 2 p.l., ix-xiv p., 1 l., 974 p.