Summary of total seed improvement work as reported by the various states in 1929.
APA Citation
United States. Extension Service. (1929). Summary of total seed improvement work as reported by the various states in 1929. Washington: GPO.
MLA Citation
United States. Extension Service. Summary of Total Seed Improvement Work As Reported by the Various States In 1929. Washington: GPO, 1929.
Warning: These citations may not always be complete (especially for serials).