Παραπομπή APA

Dale Carnegie. (2003). How to develop self-confidence & influence people by public speaking. Sulabh publications.

Παραπομπή Chicago Style

Dale Carnegie. How to Develop Self-confidence & Influence People by Public Speaking. Agra: Sulabh publications, 2003.

Παραπομπή MLA

Dale Carnegie. How to Develop Self-confidence & Influence People by Public Speaking. Sulabh publications, 2003.