National Council for Geographic Education, National Council of Geography Teachers (U.S.), & American Geographical Society of New York. The Journal of geography. National Council for Geographic Education.
Cita Chicago (17th ed.)National Council for Geographic Education, National Council of Geography Teachers (U.S.), i American Geographical Society of New York. The Journal of Geography. [Indiana, PA, etc.]: National Council for Geographic Education.
Cita MLA (9th ed.)National Council for Geographic Education, et al. The Journal of Geography. National Council for Geographic Education.
Atenció: Aquestes cites poden no estar 100% correctes.