Gaya APA
Smith, Peter. (2003).
An Introduction to formal logic .
CAMBRIDGE:
Cambridge University Press.
Gaya Chicago
Smith, Peter.
An Introduction to formal logic.
CAMBRIDGE:
Cambridge University Press,
2003.
Buku.
Gaya MLA
Smith, Peter.
An Introduction to formal logic.
CAMBRIDGE:
Cambridge University Press,
2003.
Buku.
Gaya Turabian
Smith, Peter.
An Introduction to formal logic.
CAMBRIDGE:
Cambridge University Press,
2003.
Buku.