APA

Gitomer J., . (2003). The sales Bible. New Jersey: John Wiley & Sons.

Chicago

Gitomer Jeffrey, . 2003. The sales Bible. New Jersey: John Wiley & Sons.

Harvard

Gitomer J., . (2003). The sales Bible. New Jersey: John Wiley & Sons.

MLA

Gitomer Jeffrey, . The sales Bible. New Jersey: John Wiley & Sons. 2003.