TY  - BOOK
AU  - Sinco, Vicente G.
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 2
PY  - 1959///];copyright 1959.46
CY  - Quezon City
PB  - University of the Philippines Publications Off.
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Education
KW  - Philippines
N1  - Includes index; 5
ER  -