An elective course in senior high school geography :
report of the Committee on High School Geography of the National Council of Geography Teachers, December, 1929.

APA Citation

National Council for Geographic Education. Committee on High School Geography. (1930). An elective course in senior high school geography: report of the Committee on High School Geography of the National Council of Geography Teachers, December, 1929. Chicago, Ill.: National Council of Geography Teachers.

MLA Citation

National Council for Geographic Education. Committee on High School Geography. An Elective Course In Senior High School Geography: Report of the Committee On High School Geography of the National Council of Geography Teachers, December, 1929. Chicago, Ill.: National Council of Geography Teachers, 1930.