Gaya APA
Leterman, Elmer G.. (1970).
Sales and sales management (text).
New York:
Alexander Hamilton Institute.
Gaya Chicago
Leterman, Elmer G..
Sales and sales management.
text
New York:
Alexander Hamilton Institute,
1970.
Tesis.
Gaya MLA
Leterman, Elmer G..
Sales and sales management.
text
New York:
Alexander Hamilton Institute,
1970.
Tesis.
Gaya Turabian
Leterman, Elmer G..
Sales and sales management.
text
New York:
Alexander Hamilton Institute,
1970.
Tesis.