Some important facts in the life history of the gid parasite and their bearing on the prevention of the disease
By: By Maurice C. Hall
Series: United States. Dept. of Agriculture. Bureau of Animal Industry. Circular -- 159; Circular (United States. Bureau of Animal Industry) -- no. 159.
Publisher: Govt. Print. Off.]
Published: 1910
Place of publication: [Washington
Language: eng
Subjects: Sheep; Parasites