TY  - BOOK
AU  - Gilbert,Leslie A  .
AU  - Wright,Jan W  .
TI  - Non-book materials:their bibliographic control / 
T2  - (Working paper no;6), 
SN  - 0900313218
U1  - 025.3 
PY  - 1971///
CY  - New Delhi : 
PB  - National Council of Education Technology , 
KW  - BIBLIOGRAPHIC CONTROL-NON BOOK MATERIALS
N1  - Includes bibliographic references
ER  -