@book{32723,
	author = {Butler, Pierce},
	title = {The reference function of the library.},
	publisher = {Gregg Press},
	year = {1972 [c1943]},
	series = {The Library reference series. Librarianship and library resources.},
	address = {Boston},
	note = {Reprint of the ed. published by the University of Chicago Press, Chicago, which was issued as Papers presented before the Library Institute at the University of Chicago, June 29 to July 10, 1942, and as The University of Chicago studies in library science.}
}