APA Style
Williams, Brian. (2005).
Alam Semesta .
United Kingdom:
Erlangga.
Chicago Style
Williams, Brian.
Alam Semesta.
United Kingdom:
Erlangga,
2005.
.
MLA Style
Williams, Brian.
Alam Semesta.
United Kingdom:
Erlangga,
2005.
.
Turabian Style
Williams, Brian.
Alam Semesta.
United Kingdom:
Erlangga,
2005.
.