Singh, Sita Ram. Technological parameters in agricultural production function / Sita Ram Singh. - New Delhi : Ashish Publishing House, c 1986. - xii, 153 p. : ill. ; 22 cm. Included Index. Bibliography : p.141-153. 339 339 Subjects--Topical Terms: Agricultural innovations -- India. Dewey Class. No.: 338.1 / S64t