TY - BOOK TI - Illinois streams : a classification based on their fishes and an analysis of factors responsible for disappearance of native species VL - 76 UR - https://www.biodiversitylibrary.org/item/53650 PB - Illinois Natural History Survey CY - Urbana PY - 1971 N1 - Cover title. AU - Smith, Philip W. (Philip Wayne), KW - Fishes KW - Fresh-water invertebrates KW - Illinois KW - Rivers ER -