TY  - BOOK
AU  - 
AU  - Cropley, A. J.,
ED  - 
ED  - 
ED  - 
ED  - 
TI  - : some practical considerations 
SN  - 0080260675 (paperback)
SN  - 2
PY  - 1980///.46
CY  - Hamburg
PB  - Unesco Institute for Education and Pergamon Press
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Continuing education
N1  - Includes bibliographies and index; 5; Professional
ER  -