Gaya APA
The First World War. ().
Oxford:
Oxford University Press.
Gaya Chicago
The First World War.
.
Oxford:
Oxford University Press,
.
Text.
Gaya MLA
The First World War.
.
Oxford:
Oxford University Press,
.
Text.
Gaya Turabian
The First World War.
Oxford:
Oxford University Press,
.
Print.