How to enter and win an invention contest
Sobey, Edwin J C.
How to enter and win an invention contest Edwin J C Sobey. - Berkeley Heights, NJ : Enslow Publishers, ©1999. - 104 pages : illustrations ; 24 cm. - Science fair success. .
0766011739
Inventions --United States--Competitions--Juvenile literature.
Children as inventors --United States --Juvenile literature.
Inventions --Competitions.
607.3973 Sc416 1999
How to enter and win an invention contest Edwin J C Sobey. - Berkeley Heights, NJ : Enslow Publishers, ©1999. - 104 pages : illustrations ; 24 cm. - Science fair success. .
0766011739
Inventions --United States--Competitions--Juvenile literature.
Children as inventors --United States --Juvenile literature.
Inventions --Competitions.
607.3973 Sc416 1999