@book{61001,
	author = {Tedeschi, Frank P.},
	title = {The active filter handbook /},
	publisher = {Tab Books,},
	year = {c1979.},
	address = {Blue Ridge Summit, Pa. :},
	edition = {1st ed.},
	note = {http://www.amazon.com/Active-Filter-Handbook-Frank-Tedeschi/dp/0830611339/ref=sr_1_1?s=books&ie=UTF8&qid=1413264538&sr=1-1&keywords=0830611339}
}