Gaya APA
Walsh, W.H.. (1968).
Philosophy of history / W. H. Walsh .
London:
Harper \r Row.
Gaya Chicago
Walsh, W.H..
Philosophy of history / W. H. Walsh.
London:
Harper \r Row,
1968.
Buku.
Gaya MLA
Walsh, W.H..
Philosophy of history / W. H. Walsh.
London:
Harper \r Row,
1968.
Buku.
Gaya Turabian
Walsh, W.H..
Philosophy of history / W. H. Walsh.
London:
Harper \r Row,
1968.
Buku.