Gaya APA
Haywood, Roger. (1987).
All about PR .
London:
McGraw Hill.
Gaya Chicago
Haywood, Roger.
All about PR.
London:
McGraw Hill,
1987.
Buku.
Gaya MLA
Haywood, Roger.
All about PR.
London:
McGraw Hill,
1987.
Buku.
Gaya Turabian
Haywood, Roger.
All about PR.
London:
McGraw Hill,
1987.
Buku.