TY - BOOK AU - Feistritzer, Waltner P., ed. AU - Kelly, A. Fenwick, ed. TI - Improved seed production : a manaul on the formulation implementation and evaluation of seed programmes and projects T2 - (F.A.O. plant production and protection series; no. 15) SN - 9789251002438 PY - 1978/// CY - Rome PB - Food & Agriculture Organization ER -