Gaya APA
Beck, A., Setiyowati, C, E.
(2001).
Harta Karun Elliot
.
Yogyakarta:
Kanisius.
Gaya MLA
Beck, Andrea., Setiyowati, C., Erni.
"Harta Karun Elliot".
Yogyakarta:
Kanisius,
2001.
Book.