Stomach worms (Haemonchus contortus) in sheep
By: By B.H. Ransom
Series: United States. Dept. of Agriculture. Bureau of Animal Industry. Circular -- 102; Circular (United States. Bureau of Animal Industry) -- no. 102.
Publisher: Government Printing Office
Published: 1907
Place of publication: Washington, D.C
Language: eng
Subjects: Sheep; Infections