@book{4270,
	author = {Sandlin, Robert E.},
	title = {The textbook of hearing aid amplification /},
	publisher = {Singular Thomson Learning,},
	year = {c2000.},
	address = {San Diego, Calif. :},
	edition = {2nd ed.},
	note = {Rev. ed. of: Handbook of hearing aid amplification. 1st ed. 1988.}
}