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Wszystkie 2 wydania Joan E Sieber na Paperback Book
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![Cover for Joan E Sieber · The Ethics of Social Research: Surveys and Experiments - Springer Series in Social Psychology (Paperback Book) [Softcover reprint of the original 1st ed. 1982 edition] (2012)](https://imusic.b-cdn.net/images/item/original/219/9781461257219.jpg?joan-e-sieber-2012-the-ethics-of-social-research-surveys-and-experiments-springer-series-in-social-psychology-paperback-book&class=scaled&v=1608730279)
![Cover for Joan E Sieber · The Ethics of Social Research: Fieldwork, Regulation, and Publication - Springer Series in Social Psychology (Paperback Book) [Softcover reprint of the original 1st ed. 1982 edition] (2012)](https://imusic.b-cdn.net/images/item/original/240/9781461257240.jpg?joan-e-sieber-2012-the-ethics-of-social-research-fieldwork-regulation-and-publication-springer-series-in-social-psychology-paperback-book&class=scaled&v=1608659209)