Παραπομπή APA
Bly, R. W. (1993). Keeping clients satisfied: Make your service business more successful and profitable. New Jersey: Prentice Hall.
Παραπομπή Chicago StyleBly, Robert W. Keeping Clients Satisfied: Make Your Service Business More Successful and Profitable. New Jersey: Prentice Hall, 1993.
Παραπομπή MLABly, Robert W. Keeping Clients Satisfied: Make Your Service Business More Successful and Profitable. New Jersey: Prentice Hall, 1993.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.