Não informado. (2017). Dissertation Abstracts: Abstracts of dissertations and monographs in microfilm. University Microfilms.
Chicago-Zitierstil (17. Ausg.)Não informado. Dissertation Abstracts: Abstracts of Dissertations and Monographs in Microfilm. Ann Arbor, Mich: University Microfilms, 2017.
MLA-Zitierstil (8. Ausg.)Não informado. Dissertation Abstracts: Abstracts of Dissertations and Monographs in Microfilm. University Microfilms, 2017.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.