Gaya APA

Doyle, S, A, C. (2022). The Valley of Fear (Cet. 3). Jakarta: PT.Gramedia Pustaka Utama.

Gaya MLA

Doyle, Sir, Arthur, Conan. "The Valley of Fear". Cet. 3 Jakarta: PT.Gramedia Pustaka Utama, 2022. 140 hlm.; 11 cm x 18 cm.\";\"\.