APA-viite (7. p.)

Metz, T. (2009). Selling the Intangible Company (sachu.). Harvard Business Press.

Chicago-viite (17. p.)

Metz, Thomas. Selling the Intangible Company. sachu. Boston,Mas setts: Harvard Business Press, 2009.

MLA-viite (9. p.)

Metz, Thomas. Selling the Intangible Company. sachu. Harvard Business Press, 2009.