Nodular worm disease of sheep
By: [by Merritt P. Sarles and A.O. Foster]
Contributors: Foster, A. O. (Aurel Overton), 1906-
Series: Leaflet / United States. Dept. of Agriculture -- no. 228; Leaflet (United States. Dept. of Agriculture) -- no. 228.
Publisher: U.S. Dept. of Agriculture
Published: 1942
Place of publication: Washington, D.C
Language: eng
Subjects: Nodular disease; Sheep; Diseases; Parasites
Notes: Cover title.

"Issued August 1942"--T.p. verso.