000 00250 a2200121 4500
080 _a63
100 _a
_d
245 1 _aRural science
_cby G.R. Moore
260 _aLondon
_bCassell
_c1965
300 _a90 p.
650 _aRural Science
901 _a86426
999 _c40706
_d40706