Gaya APA
Doyle, S, A, C.
(1999).
The Hound of the Baskervilles & The Valley of Fear
.
London:
Wordsworth.
Gaya MLA
Doyle, Sir, Arthur, Conan.
"The Hound of the Baskervilles & The Valley of Fear".
London:
Wordsworth,
1999.
Text.