Silverman, Buffy.

Simple machines : forces in action / Buffy Silverman. - Chicago, Ill. : Heinemann Library, c2009. - 48 p. : col.ill. ; 25 cm. - Do it yourself .

Includes bibliographical references and index.

ISBN: 9781432923105 (hc) 9781432923174 (pb)

LCCN: 2008034936

Subjects--Topical Terms:
Simple machines--Juvenile literature.

LC Class. No.: TJ147 / .S55 2009