TY  - BOOK
AU  - Grigal,David F
AU  - Ohmann,Lewis F
TI  - Plant species biomass estimates for 13 upland community types of northeastern minnesota / Lewis F.Ohmann and David F,Grigal
CY  - United states
KW  - Economic land energy
KW  - Natural resources - Plant resource - minnesota biomass estimates
ER  -