Undergraduate libraries as part of university library systems have existed since 1949, but there is little statistical data prior to 1971. This study examines statistics reported since that time, supplemented with electronic mail surveying, to show how such libraries have responded to the changing needs of an undergraduate population. The results show that change, and rapid response to external forces, are hallmarks of undergraduate libraries past and present.
Watson, Mark, Foote, Jody B. and Person, Roland. "Twenty Years of Undergraduate Libraries: Whence and Whither?." (Jan 1996).