TY  - BOOK
AU  - Richardson, Linda Deer  .
TI  - Principles and practice of informal education: learning through life / 
SN  - 0-415-21690-7
U1  - T 
PY  - 2001///
CY  - New York : 
PB  - Roudledge , 
KW  - Non-formal education
ER  -