(1981). Amendments to international rules for seed testing 1976: Composite version of amendments made at the 18th ISTA Congress in Madrid, 1977, and 19th ISTA Congress in Vienna, 1980. Zurich: The International Seed Testing Association.
Chicago Style CitationAmendments to International Rules for Seed Testing 1976: Composite Version of Amendments Made At the 18th ISTA Congress in Madrid, 1977, and 19th ISTA Congress in Vienna, 1980. Zurich: The International Seed Testing Association, 1981.
MLA CitationAmendments to International Rules for Seed Testing 1976: Composite Version of Amendments Made At the 18th ISTA Congress in Madrid, 1977, and 19th ISTA Congress in Vienna, 1980. Zurich: The International Seed Testing Association, 1981.
Warning: These citations may not always be 100% accurate.