Columbia subject headings:
Dissertations, Academic--Bibliography of bibliographies.
Dissertations, Academic--Canada--Bibliography.
Dissertations, Academic--United States--Bibliography.
Harvard subject headings:
Dissertations, Academic--Canada--Bibliography of bibliographies.
Dissertations, Academic--United States--Bibliography of bibliographies.
Princeton subject headings:
Dissertations, Academic--Canada--Bibliography of bibliographies.
Dissertations, Academic--United States--Bibliography of bibliographies.