Subscribe to The Chicago Manual of Style Online
Manuscript Preparation, Copyediting, and Proofreading
Q. How do you number the pages in the appendix when you have multiple appendixes? Do you continue the same numbering that you have in the text, or do you use A-1, for example?
A. You can do it either way, but it’s not a good idea to put a hyphen in a page number, because when you refer to ranges, it gets ugly: A-1–A-5? A-1–5? Periods work better: A.1–A.5. If there’s any chance that the appendix will appear independently of the main text, avoid numbering that continues from it.