Langley, Andrew,

Helicopters / Andrew Langley. - Collingwood, ON : Saunders Book Company, c2011. - 32 p. : col. ill. ; 27 cm. - Machines on the move .

Includes index.

ISBN: 9781926722696 (pbk.)

Nat. Bib. Agency Control No.: 20110104927

Subjects--Topical Terms:
Helicopters
Air ambulance
Helicopters

Dewey Class. No.: j629.133/352