Citation, Documentation of Sources

Q. I am editing an anthology in which the authors have written essays responding to a document. This document has been previously published as a brochure and now will be published as part of the anthology. How should they cite quotations from the document?

A. Something like “p. xii, above” or “appendix A, p. 113” should do it. (The page numbers will have to be entered after typesetting.)