Gaya APA
Sheldon, D.
(2010).
Sophie Pitt-Turnbull Discover America
.
Jakarta:
PT Gramedia Pustaka Utama.
Gaya MLA
Sheldon, Dyan.
"Sophie Pitt-Turnbull Discover America".
Jakarta:
PT Gramedia Pustaka Utama,
2010.
Text.