Gaya APA
Harper, David. (1992).
Eutrophication of freshwater: principles, problem and restoration / David, Harper .
:
London: Chapman & Hall.
Gaya Chicago
Harper, David.
Eutrophication of freshwater: principles, problem and restoration / David, Harper.
:
London: Chapman & Hall,
1992.
Buku.
Gaya MLA
Harper, David.
Eutrophication of freshwater: principles, problem and restoration / David, Harper.
:
London: Chapman & Hall,
1992.
Buku.
Gaya Turabian
Harper, David.
Eutrophication of freshwater: principles, problem and restoration / David, Harper.
:
London: Chapman & Hall,
1992.
Buku.