Research on farm and livestock productivity in the central Ethipian highlands : initial results , 1977-1980 /
Gryseels Guido.
Research on farm and livestock productivity in the central Ethipian highlands : initial results , 1977-1980 / Guido Gryseels and Fran k M. Anderson. - Addis Ababa : International Livestock Centre for Africa , 19 - 52 p. : ill. ; 26 cm. - ILCA Research report ; no. 4. .
Research on farm and livestock productivity in the central Ethipian highlands : initial results , 1977-1980 / Guido Gryseels and Fran k M. Anderson. - Addis Ababa : International Livestock Centre for Africa , 19 - 52 p. : ill. ; 26 cm. - ILCA Research report ; no. 4. .