Stiles, C. W. & Goldberger, J. 1910. A study of the anatomy of Watsonius (n.g.) watsoni of man and of nineteen allied species of mammalian trematode worms of the superfamily Paramphistomoidea. Bull. U.S.A. Treasury Dept. Hyg. Lab. 60: 7-252.
Stiles, C. W. & Goldberger, J. 1910. A study of the anatomy of Watsonius (n.g.) watsoni of man and of nineteen allied species of mammalian trematode worms of the superfamily Paramphistomoidea. Bull. U.S.A. Treasury Dept. Hyg. Lab. 60: 7-252.