APA-referens (7:e uppl.)

Gupta, S. (2015). Spirit of the Mind. Ideas Management.

Chicago-referens (17:e uppl.)

Gupta, Sunil. Spirit of the Mind. New Delhi: Ideas Management, 2015.

MLA-referens (9:e uppl.)

Gupta, Sunil. Spirit of the Mind. Ideas Management, 2015.