Provides a very detailed scheme for leveling books, along with an annotated bibliography of thousands of books arranged by reading level.
CMC Children's Literature PN1009.A1 G86 1998
Briefly describes thousands of books for Kindergarten through third grade, with a subject index. Reading level is assigned as A, B, or C, based on criteria explained in the preface.
CMC Children's Literature PN1009.A1 B549 2008