----------------------------Original message----------------------------
When it comes to cataloging maps, it is essential to consult:
Cartographic materials: a manual of interpretation for AACR2. 1982. Chicago:ALA.
 
It's out of print but my library has a extra copy that we will send out on
interlibrary loan.  A second edition is being worked on but won't be out until
probably about 1997 or 1998.
 
Mary Larsgaard
UCSB