O'Hare, . M. (2007). Why don't Penguin's feet freeze? and 114 other questions. Profile books.
استشهاد بنمط شيكاغوO'Hare, Mick. Why Don't Penguin's Feet Freeze? and 114 Other Questions. London: Profile books, 2007.
MLA استشهادO'Hare, Mick. Why Don't Penguin's Feet Freeze? and 114 Other Questions. Profile books, 2007.
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