Katz, William A., 1924-
Your library : a reference guide
Holt, Rinehart and Winston, 1979
Buku Teks SO
Unobtrusive data analysis of digital reference questions and service at the internet public library: an exploratory study
Artikel Jurnal
Guidelines for reference and information services in public libraries / Library Association Information Services Group
Library Association Publishing, 1999
Buku Referensi
McMenemy, David
The public library
Facet, 2009
Buku Teks SO
Plant, W. Gunter
Hanging threads
Lester and Orpen, 1978
Buku Teks SO