Washington D. C., Government Printing Office, 1918 ; 148 x 230 mm, 16 pp., cahier agrafé. En langue anglaise. U. S. Department of Agriculture, Bulletin No. 686, June 24, 1918. Bon état.
[BOTANIQUE] - SHEAR & STEVENS, & WILCOX (C. L. & Neil E., & Marguerite S.)
Reference : D5139
(1924)
Washington D. C., Government Printing Office, 1924 ; 149 x 231 mm, 16 pp. + 2 pl. hors-texte (recto verso), cahier agrafé. Tiré à part, en langue anglaise. Journal of Agricultural Research - Department of Agriculture (Reprint from) Vol. XXVIII, No. 6, May 10, 1924. Bon état.