Baum, Eckhard. <br/><br/>
Innovation and environment: A quantitative approach to the appraisal of innovations under considerations of relative scarcity. 

 - Dar Es Salaam :  East African Agricultural Economic Society,  1987. 
<br/><br/> Discusses project appraisal and evaluation. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diffusion of Innovations.<br/>Technological change.