Gaya APA
Friedman, W.. (1960).
Legal theory (Fourth edition) .
London:
Stevens and Sons Limited.
Gaya Chicago
Friedman, W..
Legal theory (Fourth edition).
London:
Stevens and Sons Limited,
1960.
Text.
Gaya MLA
Friedman, W..
Legal theory (Fourth edition).
London:
Stevens and Sons Limited,
1960.
Text.
Gaya Turabian
Friedman, W..
Legal theory (Fourth edition).
London:
Stevens and Sons Limited,
1960.
Print.