TY - BOOK TI - Circular VL - no.157 (1912:Mar.) UR - https://www.biodiversitylibrary.org/item/53641 PB - The Bureau CY - Washington, D.C PY - 1912 N1 - Each no. has also a distinctive title. --- Title from caption. AU - United States. Bureau of Entomology. KW - Insect pests KW - United States ER -