Gaya APA
Nash, Edward L. (1984).
The Direct marketing handbook .
New York:
McGraw Hill.
Gaya Chicago
Nash, Edward L.
The Direct marketing handbook.
New York:
McGraw Hill,
1984.
Buku.
Gaya MLA
Nash, Edward L.
The Direct marketing handbook.
New York:
McGraw Hill,
1984.
Buku.
Gaya Turabian
Nash, Edward L.
The Direct marketing handbook.
New York:
McGraw Hill,
1984.
Buku.