Gaya APA
Reitman, J, I. ().
Beyond 2000 The Future of Direct Marketing Masa Depan Direct Marketing .
Jakarta:
Elex Media Komputindo.
Gaya MLA
Reitman, Jerry, I.
"Beyond 2000 The Future of Direct Marketing Masa Depan Direct Marketing".
Jakarta:
Elex Media Komputindo,
.
Text.