Παραπομπή APA

GDSI. (2006). Ready reckoner of leading listed companies: Investor's guide to finanical data of 225 actively trade companies. Global data services.

Παραπομπή Chicago Style

GDSI. Ready Reckoner of Leading Listed Companies: Investor's Guide to Finanical Data of 225 Actively Trade Companies. Pune: Global data services, 2006.

Παραπομπή MLA

GDSI. Ready Reckoner of Leading Listed Companies: Investor's Guide to Finanical Data of 225 Actively Trade Companies. Global data services, 2006.