TY  - BOOK
AU  - Lasso Lasso, Betty Ruth
AU  - Realpe Narvaez, Ignacio
AU  - Urbano Gomez, Lucy Omary
TI  - Curriculum Design of A Unit For Students At Ninth Grade In The Northern Region of Nariño
U1  - 373.19  
PY  - 1996///
ER  -