Columbia subject headings:
Montgomery County (Pa.)--History, Local--Periodicals.
Montgomery County (Pa.)--History--Periodicals.
Harvard subject headings:
Local history--Pennsylvania--Montgomery County--Periodicals.
Montgomery County (Pa.)--History--Periodicals.
Princeton subject headings:
Local history--Pennsylvania--Montgomery County--Periodicals.
Montgomery County (Pa.)--History--Periodicals.
Periodicals.