Lua APA (7ú heag.)
Kesling, R. V. (1954). A new Species of Phlyctiscapha from the middle devonian ferron point formation of Michigan.
Lua i Stíl Chicago (17ú heag.)
Kesling, Robert V. A New Species of Phlyctiscapha from the Middle Devonian Ferron Point Formation of Michigan. Ann Arbor, 1954.
Lua MLA (9ú heag.)
Kesling, Robert V. A New Species of Phlyctiscapha from the Middle Devonian Ferron Point Formation of Michigan. 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.