TY  - BOOK
AU  - Heady, Christopher
TI  - What is the effect of child labour on learning achievement? Evidence from Ghana : innocenti working papers No. 79 / Christopher Heady .-
SN  - Innocenti Working Papers
U1  - 943 HEA 
PY  - 2000///
CY  - Florence 
PB  -  UNICEF Innocenti Research Centre 
KW  - Central Europe Germany
ER  -