Theo. LeSieg. (1965). I Wish That I Had Duck Feet (Beginner Books). Beginner Books/Random House.
Chicago-viite (17. p.)Theo. LeSieg. I Wish That I Had Duck Feet (Beginner Books). Beginner Books/Random House, 1965.
MLA-viite (9. p.)Theo. LeSieg. I Wish That I Had Duck Feet (Beginner Books). Beginner Books/Random House, 1965.
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