-
By: Mason, Burton B., - Robotka, Frank, - Swarthout, A. V. (Arthur Vance),Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1919Volume: no.811 (1919)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
-
By: Robotka, Frank,Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1923Volume: no.1150 (1923)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: