Lambert, J. (2018). Annie Sullivan and the trials of Helen Keller (First paperback edition.). Disney/Hyperion Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLambert, Joseph. Annie Sullivan and the Trials of Helen Keller. First paperback edition. Los Angeles: Disney/Hyperion Books, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLambert, Joseph. Annie Sullivan and the Trials of Helen Keller. First paperback edition. Disney/Hyperion Books, 2018.
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