The magazine was bimonthly, but issues 9 and 10 did not carry month and year dates, which has led different bibliographers to catalogue them in different ways.
en.wikipedia.org He also did important work as a curator, editor and bibliographer.
en.wikipedia.org It is the preliminary phase of bibliographic description and provides the vocabulary, principles and techniques of analysis that descriptive bibliographers apply and on which they base their descriptive practice.
en.wikipedia.org A person who limits such efforts to a specific field or discipline is a subject bibliographer.
en.wikipedia.org He was a bookseller, bibliographer, publicist, polemicist, historian, memoirist, author, editor, and publisher, all rolled into one.
en.wikipedia.org