TY - BOOK TI - Circular VL - no.91 (1907:June) UR - https://www.biodiversitylibrary.org/item/47873 PB - The Bureau CY - Washington, D.C PY - 1907 N1 - Each no. has also a distinctive title. --- Title from caption. AU - United States. Bureau of Entomology. KW - Insect pests KW - United States ER -