TY  - BOOK
AU  - Callahan, Joseph F.
AU  - Clark,Leonard H.
TI  - Teaching in the elementary school
SN  - 0-0231807-06
U1  - 372.1102 CAL 
PY  - 1977///
CY  - New York
PB  - Macmillan
N1  - Includes bibliographical references and index
ER  -