Hilltop Pub Co

year of pub­li­ca­ti­onISBNauthor(s)title
1983978-0-912133-00-3Kathleen HillFestivals U.S.A.: Western States
1985978-0-912133-01-0Kathleen HillFestivals U. S. A.: Eastern States
  ''978-0-912133-02-7   ''Festivals U.S.A. Central States
1984978-0-912133-04-1Gerald N. HillAquino Assassination: The True Story and Analysis of the Assassination of Philippine Senator Benigo S. Aquino, Jr.
1988978-0-912133-05-8Festivals U.S.A.