TY  - BOOK
AU  - Hirsch, Alan J.
AU  - Gadsby, Marion J. et al, co-authors
AU  - Gadsby, Marion J. et al, co-authors
TI  - Science Explorations 9
SN  - 0-471-79734-0
U1  - 509/HIR/S 
KW  - Science - Canada|Structure of Matter|Chemical change|Light and colour|Cell functions|Green plants|Food, energy and people|Space
KW  - Science - History
N1  - 3875; Science - History
ER  -