Viola, V. G. (1956). Studies on the freshwater chlorophyceae in Puerto Galera, Oriental Mindoro.
Lua i Stíl Chicago (17ú heag.)Viola, Violeta G. Studies on the Freshwater Chlorophyceae in Puerto Galera, Oriental Mindoro. 1956.
Lua MLA (9ú heag.)Viola, Violeta G. Studies on the Freshwater Chlorophyceae in Puerto Galera, Oriental Mindoro. 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.