Tuthil, Dean F; Willaims, John A. <br/><br/>
Shifting agriculture in two Chewa villages. 

 - Maryland :  University,  1968. 
<br/><br/> The purpose of this study was to determine to what extent institutions and values existing among the people who practice shifting agriculture are strategic constraints to increased agricultural production and how these institutions and values change with increasing entry into the cash economy. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farming Systems.<br/>Subsistence farming -- Cultivation systems//Farmers//Zambia/.--Subsistence farming -- Cultivation systems//Farmers//Zambia/.