Ryan, M.
Animal draught : the economics of revival / eng M. Ryan, F. Abeyratne, J. Farrington. - Colombo, Sri Lanka : Agrarian Research and Training Institute, 1981. - v, 62 p. ; 30 cm. - Occasional publication / Agrarian Research and Training Institute ; no. 23 . - Occasional publication (Agrarian Research and Training Institute) ; no. 23. .
"Joint ARTI/Reading University Farm Power Study Team."
Bibliography: p. 61-63.
Water buffalo--Sri Lanka.
Water buffalo--Economic aspects--Sri Lanka.
Animal traction--Economic aspects--Sri Lanka.
Farm tractors--Economic aspects--Sri Lanka.
Rice--Sri Lanka.
X 636.293 / AGR
Animal draught : the economics of revival / eng M. Ryan, F. Abeyratne, J. Farrington. - Colombo, Sri Lanka : Agrarian Research and Training Institute, 1981. - v, 62 p. ; 30 cm. - Occasional publication / Agrarian Research and Training Institute ; no. 23 . - Occasional publication (Agrarian Research and Training Institute) ; no. 23. .
"Joint ARTI/Reading University Farm Power Study Team."
Bibliography: p. 61-63.
Water buffalo--Sri Lanka.
Water buffalo--Economic aspects--Sri Lanka.
Animal traction--Economic aspects--Sri Lanka.
Farm tractors--Economic aspects--Sri Lanka.
Rice--Sri Lanka.
X 636.293 / AGR