TY - BOOK TI - How to know the butterflies; a manual of the butterflies of the eastern United States UR - https://www.biodiversitylibrary.org/item/116129 PB - D. Appleton CY - New York PY - 1904 AU - Comstock, John Henry, AU - Comstock, Anna Botsford, KW - Butterflies KW - United States ER -