Pena, N. (1977). Land titles and deeds (College ed.). Rex Book Store.
Lua i Stíl Chicago (17ú heag.)Pena, Narciso. Land Titles and Deeds. College ed. Manila: Rex Book Store, 1977.
Lua MLA (9ú heag.)Pena, Narciso. Land Titles and Deeds. College ed. Rex Book Store, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.