TY  - BOOK
AU  - Callahan,Sterling G.
TI  - Successful teaching in secondary schools; a guide for student and in-service teachers
SN  - 0673077209
U1  - 373.11 CHA 
PY  - 1975///.
CY  - New Delhi
PB  - Eurasia Publishing House
KW  - Teaching, Secondary school
ER  -