University Microfilms\nXerox University Microfilms\nUniversity Microfilms International. (1966). Dissertation Abstracts International. University Microfilms International.
Chicago-referens (17:e uppl.)University Microfilms\nXerox University Microfilms\nUniversity Microfilms International. Dissertation Abstracts International. Ann Arbor, Mich: University Microfilms International, 1966.
MLA-referens (8:e uppl.)University Microfilms\nXerox University Microfilms\nUniversity Microfilms International. Dissertation Abstracts International. University Microfilms International, 1966.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.