@article {688, title = {The Use of Vegetation Maps and Geographic Information Systems for Assessing Conifer Lands in California}, year = {1991}, month = {1991}, pages = {75}, institution = {NCGIA}, address = {Santa Barbara}, isbn = {91-23}, url = {"http://elib.cs.berkeley.edu/cgi-bin/doc_home?elib_id=1732"}, author = {Goodchild, M. F. and Davis, F. W. and Painho, M. and Stoms, D. M.} } @booklet {430, title = {The Use of Vegetation Maps and Geographic Information Systems for Assessing Conifer Lands in California}, number = {91-23}, year = {1991}, publisher = {NCGIA}, type = {Technical Report}, author = {Goodchild, M. F. and Davis, F. W. and Painho, M. and Stoms, D. M.} }