1-3 of 3 Books

Nodular worm disease of sheep
By Merritt P. Sarles
Prepatent periods and species composition of different Oesophagostomum spp. populations in Estonia and Denmark
Prepatent periods and species composition of different Oesophagostomum spp. populations in Estonia and Denmark
By Heli Talvik
Effects of experimental nodular worm (Oesophagostomum columbianum) infection in sheep
Effects of experimental nodular worm (Oesophagostomum columbianum) infection in sheep
By Merritt P. Sarles,United States. Department of Agriculture. National Agricultural Library.