Martyn, J. (1981). Investigative methods in library and information science: An introduction. Information resource press.
Chicago-referens (17:e uppl.)Martyn, John. Investigative Methods in Library and Information Science: An Introduction. Virginia: Information resource press, 1981.
MLA-referens (9:e uppl.)Martyn, John. Investigative Methods in Library and Information Science: An Introduction. Information resource press, 1981.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.