TY  - BOOK
AU  - Wittich, Walter Arno
ED  - Library of Congress.
ED  - Library of Congress.
TI  - Audiovisual materials: their nature and use 
SN  - 0190-9827
U1  - 025.177 
PY  - 1962///
CY  - New York
PB  - Harper & Brothers
KW  - Motion pictures
KW  - Catalogs
KW  - Filmstrips
KW  - Audio-visual materials
N1  - Includes index.
ER  -