APA (7th ed.) Citation

Doyle, S. A. C. (2021). Sherlock Holmes: The Sign of Four. Indoliterasi Group.

Chicago Style (17th ed.) Citation

Doyle, Sir Arthur Conan. Sherlock Holmes: The Sign of Four. Indoliterasi Group, 2021.

MLA (8th ed.) Citation

Doyle, Sir Arthur Conan. Sherlock Holmes: The Sign of Four. Indoliterasi Group, 2021.

Warning: These citations may not always be 100% accurate.