000 00440nam a2200169#a 4500
001 0000023763
008 211117s2020||||xx |||||||||||||| ||und||
082 _a550.7204 EAR 1996
245 0 _aEarth explorer.
260 _aInteractive
_c1996
300 _a1 computer optical disc
_bsd. ,col.
_c4 3/4 in.
365 _cMYR
650 _aEarth sciences
_xResearch
650 _aGeophysics
_xObservations
942 _cCDR
999 _c22853
_d22853