Gaya APA
Amos,Janine. (2001).
Polusi .
london:
Grolier international.
Gaya Chicago
Amos,Janine.
Polusi.
london:
Grolier international,
2001.
Text.
Gaya MLA
Amos,Janine.
Polusi.
london:
Grolier international,
2001.
Text.
Gaya Turabian
Amos,Janine.
Polusi.
london:
Grolier international,
2001.
Print.