If you are wanting a GRASS 3.0 programmer's manual, you can obtain
a copy (along with some accompanying documents concerning programming
changes for GRASS 4.0) from the following contact:
Melanie Mayfield
GRASS Information Center - USACERL
1-217-373-7220
mayfield@zorro.cecer.army.mil
You can also try one of the following, but the lines are often
busy:
outside IL: 1-800-USA-CERL, ext. 220
in IL: 1-800-252-7122, ext. 220
Marji Larson
Office of GRASS Integration
larson@zorro.cecer.army.mil