Pennsylvania historical bibliography

"The present booklet is intended as the first of a series which will bring the published bibliography of writings on Pennsylvania history up to date and, in successive publications, keep it as current as practicable. This volume, as the initial issue of the series, lists works published primarily in the years 1966 through 1970, although some materials from as far back as 1953, not previously listed, are included. Future volumes are visualized as normally covering the publications and dissertations of successive three-year blocks of time."--Intro.