A case of nanism in Strongylus vulgaris and observations on the leaf crowns in species of Strongylusv. 7No. 4American Society of Parasitologists188
Cram, Eloise B. 1921. "A case of nanism in Strongylus vulgaris and observations on the leaf crowns in species of Strongylus." The Journal of Parasitology, 7, (4) 188.