Ritter, U. P. (1996). Problems of Structural Change in the 21st Century: National and Comparative Research from Argentina, Brazil and Germany. Editorial Iberoamericana / Vervuert.
Chicago-čujuhus (17. p.)Ritter, Ulrich Peter. Problems of Structural Change in the 21st Century: National and Comparative Research from Argentina, Brazil and Germany. Alemania: Editorial Iberoamericana / Vervuert, 1996.
MLA-čujuhus (9. p.)Ritter, Ulrich Peter. Problems of Structural Change in the 21st Century: National and Comparative Research from Argentina, Brazil and Germany. Editorial Iberoamericana / Vervuert, 1996.
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