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Lua i Stíl Chicago (17ú heag.)Heilmann, P. G. F. On the Formation of Red Soils in the Lower Crati Basin, S. Italy. Enschede, Netherlands: International Institute for Aerial Survey and Earth Sciences, 1972.
Lua MLA (8ú heag.)Heilmann, P. G. F. On the Formation of Red Soils in the Lower Crati Basin, S. Italy. International Institute for Aerial Survey and Earth Sciences, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.