Paleontological Monograph. SEPM Society for Sedimentary Geology.
Lua i Stíl Chicago (17ú heag.)Paleontological Monograph. SEPM Society for Sedimentary Geology.
Lua MLA (9ú heag.)Paleontological Monograph. SEPM Society for Sedimentary Geology.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.