Geißler, G. (1956). Quellen zur Unterrichtslehre. Beltz.
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Citación estilo Chicago
Geißler, Georg. Quellen Zur Unterrichtslehre. Weinheim/Bergstr: Beltz, 1956.
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Cita MLA
Geißler, Georg. Quellen Zur Unterrichtslehre. Beltz, 1956.
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Warning: These citations may not always be 100% accurate.