Gaya APA
Ury, William L.. (1999).
The Third Side : why we fight and how we can stop .
USA:
Penguin Books.
Gaya Chicago
Ury, William L..
The Third Side : why we fight and how we can stop.
USA:
Penguin Books,
1999.
Text.
Gaya MLA
Ury, William L..
The Third Side : why we fight and how we can stop.
USA:
Penguin Books,
1999.
Text.
Gaya Turabian
Ury, William L..
The Third Side : why we fight and how we can stop.
USA:
Penguin Books,
1999.
Print.