@book{87455,
	author = {Kretschmer, Herman L.},
	title = {American certifying boards with special reference to the board of Urology / },
	publisher = {s.n., },
	year = {1942?]},
	address = {[Michigan : },
	note = {Es tirada aparte de: The Journal of Urology, v.49, nº 1, Enero, 1943, p. 127-132.}
}