Title: Dissertation abstracts international.
Authors: University Microfilms International.; University Microfilms; Xerox University Microfilms
Publisher: University Microfilms,
Year: 1969
Subjects: Engineering; Academic Dissertations as Topic; Dissertations, Academic United States Abstracts Periodicals.; Dissertations, Academic Abstracts Periodicals.; Engineering Abstracts Periodicals.; Engineering United States Abstracts Periodicals.; Science Abstracts Periodicals; Science United States Abstracts Periodicals.