Cita APA (7a ed.)

Roberto, A., & Terol, N. (2003). S4 - Success secrets of the sales superstarts: Advice and wisdom from the best & brightest independent direct sales entrepreneurs. Direct Selling Association of the Philippines.

Cita Chicago Style (17a ed.)

Roberto, Ardy, y Niña Terol. S4 - Success Secrets of the Sales Superstarts: Advice and Wisdom from the Best & Brightest Independent Direct Sales Entrepreneurs. Makati City: Direct Selling Association of the Philippines, 2003.

Cita MLA (9a ed.)

Roberto, Ardy, y Niña Terol. S4 - Success Secrets of the Sales Superstarts: Advice and Wisdom from the Best & Brightest Independent Direct Sales Entrepreneurs. Direct Selling Association of the Philippines, 2003.