TY  - BOOK
ED  - Puerto Rico.
TI  - Units for teaching... English
T2  - Teacher's Guide
PY  - 1962///-
CY  - San Juan [Puerto Rico]
PB  - English Section, Curriculum Division
KW  - English language
KW  - Study and teaching (Elementary)
KW  - Local
KW  - Puerto Rico
ER  -