TY - BOOK AU - Miner, Cynthia L. AU - Walters, Nancy R. AU - Belli, Monique L. TI - A guide to the TWIGS program for the North Central United States T2 - General technical report NC; 125 U1 - 634.950285 21st ed. PY - 1988/// CY - Saint Paul, Minnesota PB - North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture KW - Forests and forestry-Middle West-Computer programs KW - Forest management-Middle West-Computer programs KW - Forest management-Computer programs KW - Forests and forestry-Computer programs ER -