Asio, V. B., & Jahn, R. (2007). Weathering of basaltic rock and clay mineral formation in Leyte, Philippines. Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist).
Chicago-referens (17:e uppl.)Asio, Victor B., och Reinhold Jahn. "Weathering of Basaltic Rock and Clay Mineral Formation in Leyte, Philippines." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) 2007.
MLA-referens (9:e uppl.)Asio, Victor B., och Reinhold Jahn. "Weathering of Basaltic Rock and Clay Mineral Formation in Leyte, Philippines." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist), 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.