Thorwald, J., Winston, R., & Winston, C. (1969). Proof of poison: Jürgen Thorwald. [Transl. from the German by Richard and Clara Winston] (Unabridged.). Pan Books.
Citace podle Chicago (17th ed.)Thorwald, Jürgen, Richard Winston, a Clara Winston. Proof of Poison: Jürgen Thorwald. [Transl. from the German by Richard and Clara Winston]. Unabridged. London: Pan Books, 1969.
Citace podle MLA (8th ed.)Thorwald, Jürgen, et al. Proof of Poison: Jürgen Thorwald. [Transl. from the German by Richard and Clara Winston]. Unabridged. Pan Books, 1969.
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