APA

Keyes J., . (1997). How to be a successful Internet consultant. New York: McGraw-Hill.

Chicago

Keyes Jessica, . 1997. How to be a successful Internet consultant. New York: McGraw-Hill.

Harvard

Keyes J., . (1997). How to be a successful Internet consultant. New York: McGraw-Hill.

MLA

Keyes Jessica, . How to be a successful Internet consultant. New York: McGraw-Hill. 1997.