Bünstorf, Jurgen <br/><br/>
The problems of arable farming in marginal sub-tropical regions of variable rainfall : The arable farming region of the argentinian Gran Chaco 

<br/><br/> pp. 112-126, maps., tbls., gráfs.  Separata 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chaco<br/>Formosa (argentina)<br/>Chaco Argentino<br/>Tierra Agricola<br/>Agricultura