Photograph of Edgardo Mortara, pictured on the right, together with his mother and possibly (uncertain) his brother. Image online, courtesy Wikipedia Commons.
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To cite this story, using MLA Guidelines:
Bos, Carole "Kidnapping of Edgardo Mortara" AwesomeStories.com. Date of access
IN OTHER WORDS: Author. Title of story. Name of web site. Date of access <URL>.