Dissertation abstracts. [microform].
University Microfilms.
Ann Arbor, Mich. : University Microfilms,
1966-1969.
"Abstracts of dissertations available on microfilm or as xerographic reproductions."
No. 12, pt. 2 of v. 27-29 contains the annual cumulated subject and author indexes to sections A and B of Dissertation abstracts.
Microfilm.
Science
Engineering
Dissertations, Academic
Also available in a print ed.

Dissertation abstracts
Dissertation abstracts international. B, Sciences and engineering