TY  - BOOK
AU  - Carle,Mark A
AU  - Sarquis,Mickey
AU  - Nolan,Louise Mary
TI  - Physical science: the challenge of discovery 
SN  - 0669180602
U1  - 372.35 
PY  - 1991///.
CY  - Lexington, Mass: 
PB  - D.C. Heath, 
KW  - Physical sciences
KW  - Study and teaching (Elementary)
KW  - Science
ER  -