Columbia subject headings:
Dissertations, Academic--Germany--Bibliography--Periodicals.
Sociology--Bibliography--Education (Higher)--Dissertations--Periodicals.
Harvard subject headings:
Bibliography--Sociology--Education--Universities and colleges--Dissertations--Periodicals.
Dissertations, Academic--Germany--Bibliography--Periodicals.
Princeton subject headings:
Bibliography--Sociology--Education--Universities and colleges--Dissertations--Periodicals.
Dissertations, Academic--Germany--Bibliography--Periodicals.
Periodicals.