Association of Geology Teachers (U.S.) & National Association of Geology Teachers. (1995). Journal of geological education. Association of Geology Teachers.
Cita Chicago (17th ed.)Association of Geology Teachers (U.S.) i National Association of Geology Teachers. Journal of Geological Education. [Appleton, Wis.]: Association of Geology Teachers, 1995.
Cita MLA (9th ed.)Association of Geology Teachers (U.S.) i National Association of Geology Teachers. Journal of Geological Education. Association of Geology Teachers, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.