Gaya APA
Kossen, Stan. (1994).
Careers in selling .
New York:
Harper Collins College.
Gaya Chicago
Kossen, Stan.
Careers in selling.
New York:
Harper Collins College,
1994.
Text.
Gaya MLA
Kossen, Stan.
Careers in selling.
New York:
Harper Collins College,
1994.
Text.
Gaya Turabian
Kossen, Stan.
Careers in selling.
New York:
Harper Collins College,
1994.
Print.