Gaya APA
Jeff, D., Dick, C. (1993).
Getting new clients / Dick Connor, Jeff Davidson (Ed.ke-2).
New York:
John Wiley n Sons.
Gaya MLA
Davidson, Jeff., Connor, Dick.
"Getting new clients / Dick Connor, Jeff Davidson".
Ed.ke-2
New York:
John Wiley n Sons,
1993.
Textbook.