Felker, Peter. <br/><br/>
State of the art :  acacia albida as a complementary permanent intercrop with annual crops. 

 - Riverside :  California University, College of Natural and Agricultural Science,  1978. 
<br/><br/> Prepared under contract for United States Agency for International Development. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Legumes.<br/>Acacia.<br/>Nitrogen -- Fixation.--Nitrogen -- Fixation.<br/>Soil fertility.<br/>Crop rotation.<br/>Agriculture -- Research.--Agriculture -- Research.