Balauag, M. P. (1979). The influence of the extension program of the agricultural educational institutions on tobacco farming in Cagayan Valley.
Lua i Stíl Chicago (17ú heag.)Balauag, Mariano Pelagio. The Influence of the Extension Program of the Agricultural Educational Institutions on Tobacco Farming in Cagayan Valley. 1979.
Lua MLA (9ú heag.)Balauag, Mariano Pelagio. The Influence of the Extension Program of the Agricultural Educational Institutions on Tobacco Farming in Cagayan Valley. 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.