Improved seed production : a manual on the formulation, implementation and evaluation of seed programmes and projects /
edited by Walther P. Feistritzer, A. Fenwick kelly and Food and Agriculture Organisation of the United nations..
- Rome : FAO, 1978.
- xv, 146 p. : ill.
- (Food and Agriculture Organization of the United nations. Plant production and protection series ; no. 15). .