TY  - BOOK
AU  - Krajick, Joseph S.
TI  - Teaching science in elementary and middle school: a project - based approach
SN  - 9780415534055
U1  - 372.35 KRA 
PY  - 2014///
CY  - New York
PB  - Routledge Taylor and Francis Group
N1  - Includes bibliographical references
ER  -