Παραπομπή σε μορφή APA (7η εκδ.)

Hopf, L., & Welter, W. (2010). Rethink, reinvent, reposition: 12 strategies to renew your business and boost your bottom line. Adams Business.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hopf, Leo, και William Welter. Rethink, Reinvent, Reposition: 12 Strategies to Renew Your Business and Boost Your Bottom Line. Avon, Massachusetts: Adams Business, 2010.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hopf, Leo, και William Welter. Rethink, Reinvent, Reposition: 12 Strategies to Renew Your Business and Boost Your Bottom Line. Adams Business, 2010.