Christie, A. (1971). The golden ball: And other stories. Dodd, Mead & Company.
Cita Chicago Style (17a ed.)Christie, Agatha. The Golden Ball: And Other Stories. New York: Dodd, Mead & Company, 1971.
Cita MLA (8a ed.)Christie, Agatha. The Golden Ball: And Other Stories. Dodd, Mead & Company, 1971.
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