Deismireacht APA

Doyle, A. C. (1994). The Sign of the Four (1st.). OUP.

Chicago Edition Citation

Doyle, Arthur Conan. The Sign of the Four. 1st. New York: OUP, 1994.

Deismireacht MLA

Doyle, Arthur Conan. The Sign of the Four. 1st. OUP, 1994.

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