Gaya APA
Barlowe, Raleigh. (1972).
Land resources economic .
Englewood Cliffs, New Jersey:
Prentice-Hall.
Gaya Chicago
Barlowe, Raleigh.
Land resources economic.
Englewood Cliffs, New Jersey:
Prentice-Hall,
1972.
Text.
Gaya MLA
Barlowe, Raleigh.
Land resources economic.
Englewood Cliffs, New Jersey:
Prentice-Hall,
1972.
Text.
Gaya Turabian
Barlowe, Raleigh.
Land resources economic.
Englewood Cliffs, New Jersey:
Prentice-Hall,
1972.
Print.