TY  - BOOK
AU  - Watt Daniel
TI  - Learning with logo
U1  - D65,8(B)92L, M3 
PY  - 1983///
CY  - New York    
PB  -  McGraw Hill       
KW  -  Computer languages
KW  -  Logo
KW  - Computer languages
N1  - Appendix 289-358p
ER  -