Machines & inventions.

Machines & inventions. - Cairo : Alexandria ; Va : Dar al-Kitab al-Misri ; Time-Life, 1999. - 151 p. : col. ill. ; 31 cm. - Twenty first century encyclopedia of science, technology and nature .

Includes index.

9772386682


Discoveries in science--Juvenile literature.
Inventions--Juvenile literature.
Machinery--Juvenile literature.

TJ147 / .M22 1999