Schmauss, Judy Kentor.

The world's toughest machines / Judy Kentor Schmauss. - Chicago, Ill. : Raintree, c2011. - 32 p. : col. ill. ; 25 cm. - Extreme machines Read me! .

Includes bibliographical references and index.

ISBN: 9781410938787 (hc) 9781410938862 (pb)

LCCN: 2009051424

Subjects--Topical Terms:
Machinery.
Earthmoving machinery.
Industrial equipment.

LC Class. No.: TJ147 / .S36 2011

Dewey Class. No.: 629.04/6