Association of Geology Teachers (U.S.) & National Association of Geology Teachers. (1995). Journal of geological education. Association of Geology Teachers.
Citazione stile Chigago Style (17a edizione)Association of Geology Teachers (U.S.) e National Association of Geology Teachers. Journal of Geological Education. [Appleton, Wis.]: Association of Geology Teachers, 1995.
Citatione MLA (9a ed.)Association of Geology Teachers (U.S.) e National Association of Geology Teachers. Journal of Geological Education. Association of Geology Teachers, 1995.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.