@book{13040,
	author = {Harvey, A. F.},
	title = {High frequency thermionic tubes / },
	publisher = {J. Wiley & Sons, },
	year = {c1945.},
	address = {New York : },
	edition = {2nd ed. },
	note = {Includes Index. },
	url = {http://catalog.hathitrust.org/api/volumes/oclc/30852040.html}
}