000 00308 a2200121 4500
080 _a631.459
_bS 548 F
245 1 _aFood or famine
_bThe challenge of erosion
_cby Ward Shepard
260 _aNew York
_c1946
650 _aSoil Erosion
100 1 _aShepard, Ward
_d
300 _a225 p. & 8 pls.
901 _a22877
999 _c44292
_d44292