The following bookstores have books by Derek Haines in their catalogues.

Australia http://www.angusrobertson.com.au
Australia http://www.booktopia.com.au
Australia http://www.collinsbooks.com.au
Australia http://www.thenile.com.au
Canada http://www.amazon.ca
France http://www.amazon.fr
Germany http://www.amazon.de
India http://www.infibeam.com
Japan http://www.amazon.co.jp
New Zealand http://www.fishpond.co.nz
South Africa http://www.redpepperbooks.co.za
Switzerland http://www.buch.ch
Switzerland http://www.staehelibooks.ch
Switzerland http://www.stauffacher.ch
UK http://www.abebooks.co.uk
UK http://www.alibris.co.uk
UK http://www.amazon.co.uk
UK http://www.bookdepository.co.uk
USA http://www.barnesandnoble.com
USA http://www.betterworldbooks.com
USA http://www.biggerbooks.com
USA http://www.powells.com
USA http://www.tatteredcover.com
USA http://www.textbookx.com
USA http://www.valorebooks.com
Worldwide http://www.buy.com