Gaya APA
Berry, Brian J.L., RAY, D. Michael, Conkling, Edgar C.. (1976).
The Geography of economic systems .
Englewood Cliffs:
Prentice-Hall.
Gaya Chicago
Berry, Brian J.L., RAY, D. Michael, Conkling, Edgar C..
The Geography of economic systems.
Englewood Cliffs:
Prentice-Hall,
1976.
Text.
Gaya MLA
Berry, Brian J.L., RAY, D. Michael, Conkling, Edgar C..
The Geography of economic systems.
Englewood Cliffs:
Prentice-Hall,
1976.
Text.
Gaya Turabian
Berry, Brian J.L., RAY, D. Michael, Conkling, Edgar C..
The Geography of economic systems.
Englewood Cliffs:
Prentice-Hall,
1976.
Print.