المؤلفون: Handler, Diana Z.,, Nitecki, Matthew H.
الوصول الحر: https://www.europeana.eu/item/08711/bibliography_5239?utm_source=api&utm_medium=api&utm_campaign=YuvuWBeCaTest
الوصول الحر: https://www.europeana.eu/item/08711/item_25172?utm_source=api&utm_medium=api&utm_campaign=YuvuWBeCaTest