TY  - BOOK
AU  - Smith , Frank .
AU  - Harrison, A.S..
TI  - Principles of Class Teaching
U1  - 420.7 
PY  - 1965///
CY  - England
PB  - ELBS, English Language Book Society/Longman
KW  - English language
KW  - Class Teaching
KW  - G-Languages
ER  -