Richmal Crompton. (2015). William the Fourth (Just William series Book 4) (New Edit/Cover.). Macmillan Children's Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRichmal Crompton. William the Fourth (Just William Series Book 4). New Edit/Cover. Macmillan Children's Books, 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRichmal Crompton. William the Fourth (Just William Series Book 4). New Edit/Cover. Macmillan Children's Books, 2015.
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