>I am not so sure.  I quote from a book:

>   Except in the Unites States of America, this book is sold subject
>   to the condition that it shall not, by way of trade or otherwise,
>   be lent, re-sold, hired out, or otherwise circulated without the
>   publisher's prior consent in any form of binding or cover other
>   than that in which it is published and without a similar condition
>   including this condition being imposed on the subsequent purchaser.

>Of course, this might not be legally binding.