Gaya APA
Sinclair, U, (. (-1965).
The Jungle, (repr) - Penguin, 49 Tjet.pertama, 1906 .
(Harmondsworth):
Penguin Books.
Gaya MLA
Sinclair, U., (1878-1968).
"The Jungle, (repr) - Penguin, 49 Tjet.pertama, 1906 ".
(Harmondsworth):
Penguin Books,
-1965.
Buku.