Gaya APA
Krohne , David T.. (2001).
General ecology .
Wisconsin USA:
Brooks cole.
Gaya Chicago
Krohne , David T..
General ecology.
Wisconsin USA:
Brooks cole,
2001.
Text.
Gaya MLA
Krohne , David T..
General ecology.
Wisconsin USA:
Brooks cole,
2001.
Text.
Gaya Turabian
Krohne , David T..
General ecology.
Wisconsin USA:
Brooks cole,
2001.
Print.