Commercial growing of watercress
Shear, G. M.(George Myron),1905-
Shear, G. M.(George Myron),1905-Growing watercresses.
Washington] U.S. Dept. of Agriculture; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
1968]
Supersedes his Growing watercresses, issued as U.S. Dept. of Agriculture. Leaflet no. 448.
Watercress.