Weaver, Robert D. <br/><br/>
An integrated model of perenial and annual crop production for Sub-Saharan countries. 

 - Washington :  World Bank,  1989. 
<br/><br/> This macroeconomic model of household choice reflects the fact that crop production in Ssub-Ssaharan Africa is dominated by small holders who allocate household labor across annual and perenial crops and in some cases to wage labor markets. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop production.<br/>Developing countries -- Crop production.--Developing countries -- Crop production.