Roldan, G. (1980). Limnological studies of four different neotropical ecosystems with special reference to their Ephemeroptera fauna.
Lua i Stíl Chicago (17ú heag.)Roldan, Gabriel. Limnological Studies of Four Different Neotropical Ecosystems with Special Reference to Their Ephemeroptera Fauna. 1980.
Lua MLA (8ú heag.)Roldan, Gabriel. Limnological Studies of Four Different Neotropical Ecosystems with Special Reference to Their Ephemeroptera Fauna. 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.