TY - BOOK AU - Institute of Agricultural Research Statistics TI - Seminar on methodology of studying productivity in agriculture : Contributed papers of proceedingss U1 - 338.106 PY - 1970/// CY - New Delhi PB - Institute of Agricultural Research Statistics N1 - Institute of Agricultural Research Statistics: Seminar on methodology of studying productivity in agriculture : Contributed papers of proceedingss. New Delhi. Institute of Agricultural Research Statistics, 1970.--(338.106INS) ER -