TY  - BOOK
AU  - Callahan, Joseph F. and Clark, Leonard H.
TI  - Teaching in the middle and secondary schools: planning for competence
SN  - 0029460395
U1  - 371.102 
PY  - 1988///
CY  - New York
PB  - Macmillan publishing
KW  - Education
KW  - Teaching
ER  -