000 00287nam a2200121Ia 4500
008 180612s9999||||xx |||||||||||||| ||und||
041 _aen
082 _a38.1
100 _aAnne martin
245 0 _aEconomics & Agriculture
260 _alondon
_bRoutledget kegan paul
_c1968
942 _cPR
999 _c39684
_d39684