Description
Published:1990-
Item Description:"Ag Ch."
Latest issue consulted: 1996.
Microform.
Physical Description:volumes : maps ; 28 cm.
Some issues also available via Internet. Address as of 4/17/2000: http://usda.mannlib.cornell.edu/data-sets/inputs/9X171/; current access is available via PURL.
Publication Frequency:Annual
Related Items:Continued by online version.