Leinwand, G. (1978). Teaching of world history. National Council for the Social Studies.
Cita Chicago (17th ed.)Leinwand, Gerald. Teaching of World History. Washington: National Council for the Social Studies, 1978.
Cita MLA (8th ed.)Leinwand, Gerald. Teaching of World History. National Council for the Social Studies, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.