000 00300nam a2200133Ia 4500
008 160316s1977 xxu||||| |||| 00| 0 eng d
020 _a
100 _aWilliam Lockeretz
245 _aAgriculture And Energy
250 _a1
260 _aLONDON
_bACADEMIC PRESS
_c1977
300 _a750
700 _a
_a
999 _c25002
_d25002