Preventing and controlling internal parasites of hogs.
United States.Agricultural Research Service.Animal Disease and Parasite Research Division.
United States.Agricultural Research Service.Animal Disease and Parasite Research Division.Internal parasites of swine.
United States.Department of Agriculture.
[Washington] : U.S. Dept. of Agriculture,
1969.
"Supersedes Farmers' bulletin 1787, 'Internal parasites of swine.'"
Swine
Helminths