TY  - BOOK
AU  - Callahan,Joseph F.
AU  - Clark,Leonard H.(Leonard Hill),1915-
TI  - Teaching in the secondary school: planning for competence
SN  - 0023182504
PY  - 1977///
CY  - New York
PB  - Macmillan
KW  - High school teaching
N1  - Second ed. published in 1982 under title: Teaching in the middle and secondary school; Includes bibliographies
ER  -