TY  - BOOK
T1  - Logo theory & practice
T2  - 000000
A1  - Harper, Dennis
LA  - English
PP  - Pacific Grove, Calif.
PB  - Brooks/Cole
YR  - 1989
UL  - https://tuklas.up.edu.ph/Record/UP-99796217606118196
OP  - 409
CN  - QA 76.73 L63 H37 1989
KW  - LOGO (Computer program language)
ER  -