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003			MX-MdCICY
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040			_cCICY
090			_aB-15855
245	1	0	_aA comment on land utilization with reference to weather factors
490	0		_vAgriculturan Meteorology, 5, p.135-137, 1968
520	3		_aThe problem of feeding the growing world population is likely to become the most important issue within the next decade. Arable land on earth has been estimated at about a billion hectares. This is only abouth two per cent of our palnet's surface. It is essentially a constant resource.
650	1	4	_aWEATHER FACTORS
650	1	4	_aCULTIVATION
700	1	2	_aLandsberg, H.E.
856	4	0	_uhttps://drive.google.com/file/d/16FeZImmGbKnNybP0kw6Rn7ZePCOzPK8y/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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