000 nam a22 7a 4500
999 _c39840
_d39840
003 FRI
005 20180629144811.0
008 180629b xxu||||| |||| 00| 0 eng d
082 _221st ed
_a579.7
_bLIC: 2
100 _aHuckaby, Laurie Stroh
245 _aLichens as Bioindicators of Air Quality
260 _aColorado :
_bForest Service U.S. Department of Agriculture,
_c1993
500 _aUSDA Forest Service General Technical Report RM-224
653 _aLichens floras
653 _afloristics
653 _aspecies and communities
653 _aair pollution monitoring
942 _2ddc
_cEN