APA Style

Doyle, Sir Arthur Conan. (1980). The Red circle . Denmark: Grafisk Forlag.

Chicago Style

Doyle, Sir Arthur Conan. The Red circle. Denmark: Grafisk Forlag, 1980. Book.

MLA Style

Doyle, Sir Arthur Conan. The Red circle. Denmark: Grafisk Forlag, 1980. Book.

Turabian Style

Doyle, Sir Arthur Conan. The Red circle. Denmark: Grafisk Forlag, 1980. Book.