Gaya APA
Basic Encyclopedia for Children: Sciences. (2003).
Spain:
Idea Books.
Gaya Chicago
Basic Encyclopedia for Children: Sciences.
.
Spain:
Idea Books,
2003.
BUKU PENGAYAAN.
Gaya MLA
Basic Encyclopedia for Children: Sciences.
.
Spain:
Idea Books,
2003.
BUKU PENGAYAAN.
Gaya Turabian
Basic Encyclopedia for Children: Sciences.
Spain:
Idea Books,
2003.
BUKU PENGAYAAN.