00000nam 2200000za 4500 9.700493 CaOODSP 20250506145324 cr ||||||||||| 150407s1972||||xxcao|||o f000 0 eng d CaOODSP eng n-cn--- A53-1019/1972E-PDF Putt, E. D. (Eric D.) . Sunflower seed production [electronic resource] / Eric D. Putt. Rev. Ottawa : Agriculture Canada 1972. 30 p. : fig., ill. Originally published: 1957. Reprinted 1962, 1965. Revised 1967, 1972. Historical publication digitized by Agriculture and Agri-Food Canada. 15-05-Supp 2015-03-31 Fruit crops gcpds Canada. Agriculture Canada. http://publications.gc.ca PDF 2133 KB https://publications.gc.ca/collections/collection_2015/aac-aafc/A53-1019-1972-eng.pdf Publication 1019