APA-referens (7:e uppl.)

Simpson, I. S. (1988). Basic statistics for librarians (3rd ed.). Library Association.

Chicago-referens (17:e uppl.)

Simpson, Ian S. Basic Statistics for Librarians. 3rd ed. London: Library Association, 1988.

MLA-referens (9:e uppl.)

Simpson, Ian S. Basic Statistics for Librarians. 3rd ed. Library Association, 1988.