000 00298 a2200121 4500
080 _a631.543.82
_bG 729 S
245 1 _aShelterbelt
_cby A. Grachev
260 _aWashington
_bNational Science Foundation
_c1957
650 _aShelterbelt
100 1 _aGrachev, A.
_d
300 _a76 p.
901 _a94627
999 _c44832
_d44832