Guide to U.S. map resources /
Thiry, Christopher J.J.
Cobb, David A.,1945-Guide to U.S. map resources.
Map & Geography Round Table (American Library Association)
Lanham, Md. ; Oxford : Scarecrow Press,
2006.
Rev. ed. of: Guide to U.S. map resources / David A. Cobb, 1990.
Includes bibliographical references and index.
Map collections