Stephen, P. (1997). Simple statistics for library and information professionals (2nd ed.). Library Association.
Chicago-referens (17:e uppl.)Stephen, Peter. Simple Statistics for Library and Information Professionals. 2nd ed. London: Library Association, 1997.
MLA-referens (9:e uppl.)Stephen, Peter. Simple Statistics for Library and Information Professionals. 2nd ed. Library Association, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.