by Penrose, Gordon,

[ 01. English Non Fiction ] Authors: Nostbakken, Janis. | Baillie, Marilyn. Published by : Greey de Pencier Books, (Toronto :) Physical details: 32 p. : col. ill. ; 26 cm. Subject(s): Science --Experiments --Juvenile literature. | Sciences --Expériences --Ouvrages pour la jeunesse. | Science-Experiments Year : 1989 Item type : 01. English Non Fiction