International Seed Testing Association & International Seed Testing Congress. (1976). International rules for seed testing: Annexes 1976, adopted at the seventeenth International Seed Testing Congress, Warsaw 1974, to become effective on 1 July 1976 in the Northern hemisphere and on 1 January 1977 in the Southern Hemisphere. International Seed Testing Association.
Chicago-Zitierstil (17. Ausg.)International Seed Testing Association und International Seed Testing Congress. International Rules for Seed Testing: Annexes 1976, Adopted at the Seventeenth International Seed Testing Congress, Warsaw 1974, to Become Effective on 1 July 1976 in the Northern Hemisphere and on 1 January 1977 in the Southern Hemisphere. As-NLH, Norway: International Seed Testing Association, 1976.
MLA-Zitierstil (8. Ausg.)International Seed Testing Association und International Seed Testing Congress. International Rules for Seed Testing: Annexes 1976, Adopted at the Seventeenth International Seed Testing Congress, Warsaw 1974, to Become Effective on 1 July 1976 in the Northern Hemisphere and on 1 January 1977 in the Southern Hemisphere. International Seed Testing Association, 1976.