TY  - BOOK
AU  - Egipto, Emigdio E.
AU  - Aldana, Benigno 
TI  - A digest on principle of teaching
U1  - Fil 331.02 E299 1950  
PY  - 1950///.
CY  - Manila
PB  - University Publishing Incorporation.
KW  - Teaching
KW  - Aldana, Benigno
ER  -