000 00604 a2200241 4500
001 279754
020 _a
041 _aeng
080 _aLNASA TM 84317 : 1983
245 _aComparison of multispectral remote-sensing techniques for monitoring subsurface drain conditions
250 _a
260 _aWashington, D.C.
260 _bNational Aeronautics and Space Administration
260 _c1983
300 _a19 p.
300 _c
856 _u
490 _aNASA TM 84317 : 1983
700 _a
650 _a
650 _aSubsurface drains, Multi spectral remote-sensing techni
942 _cPP
942 _2UDC
999 _c239068
_d239068