- Biblio
R
D. W. Hedrick, Costello, D. F., Freeman, B. N., Cornett, E., Furtick, W. Ralph, Jackman, E. Russell, Sawyer, W. A., and , “Range robbers–-undesirable range plants”, 1958.
G
D. W. Hedrick, Hyder, D. Nelson, Lear, G., Jackman, E. Russell, Chilcote, W. W., and , “Grass is the wealth”, 1957.