TY  - BOOK
AU  - Beichner,Robert J.
AU  - Cobey,Daniel C.
TI  - Essentials of classroom teaching: elementary science 
SN  - 0205145795
PY  - 1994///
CY  - Boston
PB  - Allyn and Bacon
KW  - Science
KW  - Study and teaching
KW  - Study and teaching (Elementary)
ER  -