Yazar
Johannes Roseboom
7 cilt bulundu.
Johannes Roseboom, Steven Were Omamo · ISNAR
62 sayfa · 2001
Agriculture / Directories / Research / Statistics / Agriculture and state
Philip G. Pardey, Johannes Roseboom · Cambridge University Press
559 sayfa · 2004
Agriculture, research / Agriculture, statistics
Philip G. Pardey, Johannes Roseboom, Jock R. Anderson · Cambridge University Press
473 sayfa · 1991
Government policy / International cooperation / Agriculture / National agricultural research systems / Economic aspects
Nienke Beintema, Johannes Roseboom, Ousmane Badiane, John Lynam · International Food Policy Research Institute
496 sayfa · 2016
Kategori yok
Johannes Roseboom · ISNAR
70 sayfa · 2003
Agriculture / Econometric models / Economic aspects / Rate of return / Research
Philip G. Pardey, Hugh Quigley, Johannes Roseboom · International Service for National Agricultural Research
25 sayfa · 1992
Government policy / International cooperation / Agriculture / National agricultural research systems / Economic aspects