Weighing and balancing

Sonraí bibleagrafaíochta
Príomhchruthaitheoir:	Srivastava, Jane Jonas
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	New York Thomas Y. Crowell c1970.
Ábhair:	Mathematics > Juvenile literature. Weighing > Juvenile literature. Balancing > Juvenile literature.