Gaya APA
Levitt, Theodore. (1986).
The marketing imagination .
New York:
The Free Press.
Gaya Chicago
Levitt, Theodore.
The marketing imagination.
New York:
The Free Press,
1986.
Buku.
Gaya MLA
Levitt, Theodore.
The marketing imagination.
New York:
The Free Press,
1986.
Buku.
Gaya Turabian
Levitt, Theodore.
The marketing imagination.
New York:
The Free Press,
1986.
Buku.