Differentiation of eggs of various genera of nematodes parasitic in domestic ruminants in the United States
By: by D. A. Shorb.
Contributors: United States. Dept. of Agriculture.
Series: Technical bulletin / United States Department of Agriculture -- no. 694; Technical bulletin (United States. Dept. of Agriculture) -- no. 694.
Publisher: U.S. Dept. of Agriculture
Published: 1939
Place of publication: Washington, D.C
Language: eng
Number of pages: 11
Subjects: Ruminants -- Parasites; Nematoda
Notes: Caption title.

"October 1939."

Literature cited: p. 10.