Subject heading revision by the Library of Congress, 1941-1950
Series: Association of College and Research Libraries. Microcard series -- no. 15.; ACRL microcard series -- no. 15.
Publisher: University of Rochester Press for the Association of College and Reference Libraries
Place of publication: Rochester, N.Y
Language: eng
Format: Microform
Number of pages: 97
Subjects: Subject headings.
Notes: Thesis (M.S. in L.S.)--Columbia University 1951.

"List of sources": leaves 94-97.

Microopaque. 3 cards.