Wertheimer, M. (1959). Productive thinking (enlarged ed.). Harper & Brothers publishers.
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Citación estilo Chicago
Wertheimer, Max. Productive Thinking. enlarged ed. New York: Harper & Brothers publishers, 1959.
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Cita MLA
Wertheimer, Max. Productive Thinking. enlarged ed. Harper & Brothers publishers, 1959.
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Warning: These citations may not always be 100% accurate.