| Rating | Solver | Clue |
|---|---|---|
| DICTIONARY | Reference book | |
| SOURCEBOOK | Reference book | |
| ROGETSTHESAURUS | Word reference book | |
| HANDBOOK | A book of reference, to be carried in the hand; a manual; a guidebook. | |
| REFERENCE | That which refers to something; a specific direction of the attention; as, a reference in a text-book. | |
| INDEX | A table for facilitating reference to topics, names, and the like, in a book; -- usually alphabetical in arrangement, and printed at the end of the volume. | |
| YEARBOOK | A book published yearly; any annual report or summary of the statistics or facts of a year, designed to be used as a reference book; as, the Congregational Yearbook. | |