Gaya APA
reitman, J, I. (1994).
beyond 2000 the future of direct marketing masa depan direct marketing (1).
Jakarta:
PT ELEX MEDIA KOMPUTINDO.
Gaya MLA
reitman, Jerry, I..
"beyond 2000 the future of direct marketing masa depan direct marketing".
1
Jakarta:
PT ELEX MEDIA KOMPUTINDO,
1994.
Text.