A survey of the dialect geography in the six towns of Sorsogon Donsol, Sorsogon, Bacon, Gubat, Casiguran and Sta. Magdalena - Eco, Caridad (Adille) 1920- ([Quezon City s.n.], 1969)
Thesis (M.A.T.English)--University of the Philippines
Keywords: Linguistic geography; Sorsogon (Province) -- Languages -- Maps