Essential elements for successful seed programs
Study guide to be used as a supplement to the audiotutorial unit on the same topic
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Douglas, Johnson E.; Poey Diago, Federico Raúl; Robayo Vanoy, Gabriel; Arregocés, Oscar; Fernández de Soto, José (eds.). 1983. Essential elements for successful seed programs [tutorial unit]. Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. 1 carrusel, 93 diapositivas, 1 casete (27 min.) + guía de estudio (30 p.) + guión (15 p.). (Serie 04ESe-04.01)