TY  - BOOK
AU  - Ryan,M.
AU  - Abeyratne,Fredrick
AU  - Farrington,John
TI  - Animal draught: the economics of revival 
T2  - Occasional publication / Agrarian Research and Training Institute
U1  - X 636.293 
PY  - 1981///
CY  - Colombo, Sri Lanka
PB  - Agrarian Research and Training Institute
KW  - Water buffalo
KW  - Sri Lanka
KW  - Economic aspects
KW  - Animal traction
KW  - Farm tractors
KW  - Rice
N1  - "Joint ARTI/Reading University Farm Power Study Team."; Bibliography: p. 61-63
ER  -