00618cam a22002171 4500 agr22000338 DLC 20260227110942.0 770516s1921 enkaf b 000 0 eng c agr22000338 (OCoLC)2970384 U.S. Dept. of agr. Library TNJ DLC premarc SB191.W5 P4 Percival, John, 1863-1949. The wheat plant; a monograph, by John Percival. London, Duckworth and co. [1921] x, 463 p. illus., plates. 26 cm. Bibliography: p. 441-453. Wheat. 8782 8782