The quiet revolutionaries : a look at the campaign by agricultural scientists to fight hunger (... and how the much-neglected cassava could help) /

by Wigg, David
Published 1993

And the forgot to tell US why... : a look at the campaign against river blindness in West Africa /

by Wigg, David
Published 1993

Los revolucionarios silenciosos : una resena de la campana contra el hombre ... --.

by Wigg, David
Published 1994