Como funcionan las maquinas

Como funcionan las maquinas - Buenos Aires : Editorial Sigmar, c2001. - 48 p. : col. ill. ; 28 cm. - Coleccion 101 preguntas. . - Coleccion 101 preguntas. .

"Es una edicion Sigmar"--P. [4] of cover. Includes index.

A simple introduction to machines of all kinds--at home, at work, in industry, in the entertainment field, computers and more--in a question-and-answer format.


In Spanish.

9501113787 9789501113785


Machinery--Juvenile literature.
Children's questions and answers.

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