Gaya APA
Brain, M. et al
(2003).
Berapakah berat bumi = How much does the earth weight?
.
Bandung:
Pakar Raya.
Gaya MLA
Brain, Marshall. et al.
"Berapakah berat bumi = How much does the earth weight?".
Bandung:
Pakar Raya,
2003.
Text.