Gamboa, S. G. (1977). Instructional materials in communication arts II (English) based on geometry.
Lua i Stíl Chicago (17ú heag.)Gamboa, Sabiniano G. Instructional Materials in Communication Arts II (English) Based on Geometry. 1977.
Lua MLA (9ú heag.)Gamboa, Sabiniano G. Instructional Materials in Communication Arts II (English) Based on Geometry. 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.