Gaya APA
Becklake, S., Y, R.
(2015).
Book Of Knowladge:Bangsa-Bangsa
.
Klaten:
Pakar Raya.
Gaya MLA
Becklake, Sue., Y, Rizka.
"Book Of Knowladge:Bangsa-Bangsa".
Klaten:
Pakar Raya,
2015.
Text.