000			00334nam a2200121Ia 4500
005			20251007104455.0
008			251006s9999 xx 000 0 und d
100			_agrigg,david b.
245		4	_athe harsh lands;a study in agricultiral develpoment grigg,david b.
260			_a1st ed. | London Macmillan
260			_c1970
942			_cBOK
999			_c7905 _d7905