Supplies of all small seeded legumes greater than 1963 consumption; alfalfa supply greatest since 1960 but increase is mostly in common varieties. Some new, some old names show up on 1964 variety lists.
Thompson, H. E.
"Crop Varieties and Seed Outlook for 1964,"
Iowa Farm Science: Vol. 18
, Article 7.
Available at: https://lib.dr.iastate.edu/farmscience/vol18/iss7/7