APA
Roger Kirkby, Patricio Gallegos Tully Cornick, . (1981). On farm research methods : Comparative approch : experience of the quimiag penipe project ecuador. New York: Department of Plant Breeding & Biometrics Cornell University.
Chicago
Roger Kirkby, Patricio Gallegos Tully Cornick, . 1981. On farm research methods : Comparative approch : experience of the quimiag penipe project ecuador. New York: Department of Plant Breeding & Biometrics Cornell University.
Harvard
Roger Kirkby, Patricio Gallegos Tully Cornick, . (1981). On farm research methods : Comparative approch : experience of the quimiag penipe project ecuador. New York: Department of Plant Breeding & Biometrics Cornell University.
MLA
Roger Kirkby, Patricio Gallegos Tully Cornick, . On farm research methods : Comparative approch : experience of the quimiag penipe project ecuador. New York: Department of Plant Breeding & Biometrics Cornell University. 1981.