Johnson, Dennis V. <br/><br/>
Perennial crop-based agroforestry systems in northeast Brazil / 
D ennis V. Johnson and P.K.R. Nair. 
 - Nairobi :  ICRAf,  1985. 
 - 10 p. :  ill. ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agroforestry-- Brazil, Northeast.