TY  - BOOK
AU  - McColvin, Lionel R.
AU  - 
TI  - Public library extension
U1  - 021.6 
PY  - 1950///
CY  - Paris
PB  - United Nations educationnal 
KW  - Library cooperation
KW  - Library extension
N1  - Includes bibliographical reference and index
ER  -