000 00269 a2200121 4500
080 _a63
_bC 647 A
245 1 _aAgriculture
_cby H.D. Clout
260 _aLondon
_bMacmillan
_c1971
650 _aAgriculture
100 1 _aClout, H.D.
_d
300 _a64 p.
901 _a160951
999 _c77959
_d77959