Seuss, D. (1965). I had trouble in getting to Solla Sollew. New York: Random House.
Trích dẫn kiểu ChicagoSeuss, Dr. I Had Trouble in Getting to Solla Sollew. New York: Random House, 1965.
Deismireacht MLASeuss, Dr. I Had Trouble in Getting to Solla Sollew. New York: Random House, 1965.
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