The Mountain Barrier:  The Illustrated Natural History of Canada / 
Piter Moulding and William Fox. 
 - Toronto ;  Ontario ;  Canada :  Natural Science of Canadaited,  1970. 
 - 160 p. 
<br/><br/> [No part of this book may be reproduced in any form without written permission form the publishers, excepting brief quotations for review purposes].