Gaya APA
De Blij, H.J. (2004).
Concepts and regions in geography .
New Jersey:
John Wiley and Sons.
Gaya Chicago
De Blij, H.J.
Concepts and regions in geography.
New Jersey:
John Wiley and Sons,
2004.
CD ROM.
Gaya MLA
De Blij, H.J.
Concepts and regions in geography.
New Jersey:
John Wiley and Sons,
2004.
CD ROM.
Gaya Turabian
De Blij, H.J.
Concepts and regions in geography.
New Jersey:
John Wiley and Sons,
2004.
CD ROM.