Gaya APA
Stone, Bob. (1992).
Successful direct marketing methods (ed.4).
Lincolnwood:
NTC.
Gaya Chicago
Stone, Bob.
Successful direct marketing methods.
ed.4
Lincolnwood:
NTC,
1992.
Text.
Gaya MLA
Stone, Bob.
Successful direct marketing methods.
ed.4
Lincolnwood:
NTC,
1992.
Text.
Gaya Turabian
Stone, Bob.
Successful direct marketing methods.
ed.4
Lincolnwood:
NTC,
1992.
Print.