Gaya APA
Pipkin, Bernard W.. (2000).
Geology and the environment .
Australia:
Thomson Learning.
Gaya Chicago
Pipkin, Bernard W..
Geology and the environment.
Australia:
Thomson Learning,
2000.
Tesis.
Gaya MLA
Pipkin, Bernard W..
Geology and the environment.
Australia:
Thomson Learning,
2000.
Tesis.
Gaya Turabian
Pipkin, Bernard W..
Geology and the environment.
Australia:
Thomson Learning,
2000.
Tesis.