000 00346 am a2200121 a 4500
100 1 _aFlint, L.H.
245 1 _aCrop-plant stimulation with paper mulch
260 _aWashington
_c1928
300 _a1-20 p.
942 _2udc
_cB
440 _aCrop, Plant, Mulch United States Department of Agriculture. Technical Bulletin No. 75
901 _aS50217
999 _c107109
_d107109