TY  - GEN
AU  - Pottinger, R. Dorothy
AU  - Collins-Figueroa, Marceline
AU  - McClenan, Vilma
TI  - First steps in science. Activity book 4
SN  - ISBN 976-8010-57-6
U1  - Pam 500 
PY  - 1997///
CY  - Kingston, P.O. Box 489. Kgn. 10
PB  - Carlong
KW  - Science - Study and teaching (Elementary)
KW  - Science
ER  -