@book{70982,
	author = {Ghirardi, Alfred A.},
	title = {Radio physics course;},
	publisher = {Rinehart and Winston,},
	year = {c1932.},
	address = {New York :},
	edition = {2nd ed.},
	note = {Originally published as a series of articles in Radio mechanics and Radio design magazines. cf. Pref.}
}