01337nam 2200385Ka 450 991069123890332120021010085801.0(CKB)5470000002344976(OCoLC)50761785ocm50761785(OCoLC)995470000002344976(EXLCZ)99547000000234497620021010d2001 ua 0engtxtrdacontentcrdamediacrrdacarrierGround-based photographic monitoring[electronic resource] /Frederick C. HallPortland, OR :U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station,[2001]General technical report PNW ;GTR-503"May 2001."Title from title screen.Photography in environmental monitoringHandbooks, manuals, etcRepeat photographyHandbooks, manuals, etcHandbooks and manuals.lcgftPhotography in environmental monitoringRepeat photographyHall Frederick C1381414Pacific Northwest Research Station (Portland, Or.)GPOGPOBOOK9910691238903321Ground-based photographic monitoring3433790UNINA