Open twenty-four hours
Subtitle: a case study
By: by Mary Ellen Heim.
Series: Occasional papers -- no. 187, February 1990; Occasional papers (University of Illinois. Graduate School of Library and Information Science -- 187.
Publisher: Board of Trustees of the University of Illinois
Published: 1990
Place of publication: Champaign, Ill
Language: eng
Number of pages: 47
Subjects: Library use studies.; Library administration.