Askew, Amanda.

Diggers / Amanda Askew. - Richmond Hill, Ont. : Firefly Books, c2010. - 24 p. : col. ill. ; 28 cm. - Mighty machines. . - Mighty machines (Richmond Hill, Ont.) .

Includes index.

ISBN: 9781554077052 1554077052

Subjects--Topical Terms:
Excavating machinery.