Status and potential of rock phosphate as a farming technology : perceptions of decision-makers in the agricultural technology systems of Burkina Faso and Uganda
by Ruth Haug
Bok Engelsk 1992
Utgitt | [S.l.] : [R. Haug] , 1992
|
---|---|
Omfang | 200 bl.
|
Opplysninger | Avhandling (Ph.D.) - University of Maryland, 1992
|