Gaya APA
Collective Security. (1966).
California:
Chandler Publishing.
Gaya Chicago
Collective Security.
.
California:
Chandler Publishing,
1966.
.
Gaya MLA
Collective Security.
.
California:
Chandler Publishing,
1966.
.
Gaya Turabian
Collective Security.
California:
Chandler Publishing,
1966.
.