Gaya APA
Biologi of freshwater pollution. (2002).
England:
Pearson.
Gaya Chicago
Biologi of freshwater pollution.
4.
England:
Pearson,
2002.
Buku.
Gaya MLA
Biologi of freshwater pollution.
4.
England:
Pearson,
2002.
Buku.
Gaya Turabian
Biologi of freshwater pollution.
England:
Pearson,
2002.
Buku.