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Subclass AY
| AY10-2001 | Yearbooks. Almanacs. Directories | |
| AY10-29 | Annuals | |
| AY30-1730 | Almanacs | |
| AY2001 | Directories. General works on the compilation of directories, etc. Class directories by subject in B-Z | |
Page:Library of Congress Classification Outline.djvu/10
