Vettiger, H. (1977). Gruppenunterricht: (Teildruck).
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Citación estilo Chicago
Vettiger, Heinz. Gruppenunterricht: (Teildruck). Zürich, 1977.
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Cita MLA
Vettiger, Heinz. Gruppenunterricht: (Teildruck). 1977.
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Warning: These citations may not always be 100% accurate.