Παραπομπή σε μορφή APA (7η εκδ.)

Powell. 33 Million People in the Room: How to Create, Influence, and Run a Successful Business with Social Networking (1.). Pearson India.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Powell. 33 Million People in the Room: How to Create, Influence, and Run a Successful Business with Social Networking. 1. Pearson India.

Παραπομπή σε μορφή MLA (8th εκδ.)

Powell. 33 Million People in the Room: How to Create, Influence, and Run a Successful Business with Social Networking. 1. Pearson India.