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#1	Dissertation abstracts, B. The sciences and engineering. -- Ann Arbor : University Microfilms, 1966-1969. -- ISSN 0420-073X
#2	Dissertation abstracts, A. The humanities and social sciences. -- Ann Arbor : University Microfilms, 1966-1969. -- ISSN 0095-9154
#3	Dissertation abstracts international, A. The humanities and social sciences. -- Ann Arbor : University Microfilms, 1969-. -- ISSN 0419-4209
#4	Dissertation abstracts international, B. The sciences and engineering. -- Ann Arbor : University Microfilms, 1969-. -- ISSN 0419-4217