Cliff Kottman

Interoperating Geographic Information Systems  Michael Goodchild Max J Egenhofer Robin Fegeas Cliff Kottman eBook. Springer US, 2012-12-06 ISBN 9781461551898     Interoperating Geographic Information Systems (The International Series in Engineering and Computer Science)  Michael Goodchild Max J. Egenhofer Robin Fegeas Cliff Kottman Hardcover. Springer, 1999-02 ISBN 9780792384366