MacDonald, R. K. (1989). Christian's children: The influence of John Bunyan's "The Pilgrim's Progress" on American children's literature. Lang.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMacDonald, Ruth K. Christian's Children: The Influence of John Bunyan's "The Pilgrim's Progress" on American Children's Literature. New York [u.a.]: Lang, 1989.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMacDonald, Ruth K. Christian's Children: The Influence of John Bunyan's "The Pilgrim's Progress" on American Children's Literature. Lang, 1989.
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