Gaya APA
Biology of Freshwater Pollution. (2002).
England:
Pearson.
Gaya Chicago
Biology of Freshwater Pollution.
4.
England:
Pearson,
2002.
Buku.
Gaya MLA
Biology of Freshwater Pollution.
4.
England:
Pearson,
2002.
Buku.
Gaya Turabian
Biology of Freshwater Pollution.
England:
Pearson,
2002.
Buku.