Du Mont, Rosemary Ruhig Assessing the effectiveness of library service by Rosemary Ruhig Du Mont, Paul F. Du Mont - [Champaign, Ill.] University of Illinois, Graduate School of Library and Information Science c1982 - 24 p ill 23 cm. - Occasional papers no. 152 . Subjects--Topical Terms: Libraries--Evaluation Dewey Class. No.: 025.5