Gaya APA
Ley, Willy. (1962).
The Poles .
Canada:
Time Incorporated.
Gaya Chicago
Ley, Willy.
The Poles.
Canada:
Time Incorporated,
1962.
Text.
Gaya MLA
Ley, Willy.
The Poles.
Canada:
Time Incorporated,
1962.
Text.
Gaya Turabian
Ley, Willy.
The Poles.
Canada:
Time Incorporated,
1962.
Print.