Gaya APA
Spyri, J.
(2002).
Heidi Story of the world volume 11
(
Cet.1)
.
jakarta:
PT. Gramedia.
Gaya MLA
Spyri, Johanna.
"Heidi Story of the world volume 11".
Cet.1
jakarta:
PT. Gramedia,
2002.
Text.