Gaya APA
LETHRMAN, Elmer G. (1977).
Sales and sales management .
New York:
Alexander Hamilton.
Gaya Chicago
LETHRMAN, Elmer G.
Sales and sales management.
New York:
Alexander Hamilton,
1977.
Text.
Gaya MLA
LETHRMAN, Elmer G.
Sales and sales management.
New York:
Alexander Hamilton,
1977.
Text.
Gaya Turabian
LETHRMAN, Elmer G.
Sales and sales management.
New York:
Alexander Hamilton,
1977.
Print.