Physiographic map of Southern Luzon. s.n.
Lua i Stíl Chicago (17ú heag.)Physiographic Map of Southern Luzon. [S.l: s.n.
Lua MLA (9ú heag.)Physiographic Map of Southern Luzon. s.n.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.