Gaya APA
Duchrow, Ulrich. (1992).
Europe In The World System 1492-1992 .
Geneva:
WCC Publications.
Gaya Chicago
Duchrow, Ulrich.
Europe In The World System 1492-1992.
Geneva:
WCC Publications,
1992.
Text.
Gaya MLA
Duchrow, Ulrich.
Europe In The World System 1492-1992.
Geneva:
WCC Publications,
1992.
Text.
Gaya Turabian
Duchrow, Ulrich.
Europe In The World System 1492-1992.
Geneva:
WCC Publications,
1992.
Print.