Environment
2008. R. W. Gauldie, Mike Langston, Andy Perkins and Doug Beare. Clique Analysis Of North Sea Ecosystems. STITCH Innovation Series #3. The Gail Press, Wellington. ISSN 1178-3486 (Print) ISSN 1178-3494 (online) ISBN 978-0-9597776-5-9. Hard copy and digital copy are deposited with the National Library of New Zealand.Website of RWGauldie.