Title: Official standard grades for dark air-cured tobacco, U.S. Types 35, 36, and 37; effective Aug. 22, 1965, 30 F.R. 92072. Title 7, chapter 1, part 29 issued under authority of the Tobacco inspection act, 49 Stat. 731; 7 U.S.C. 511
Subjects: Agricultural economics, Field crops, Product quality, Agronomy, Crop production, Plant cultural practices