Παραπομπή σε μορφή APA (7η εκδ.)

Parker, P. M. (2002). The 2002 world forecasts of pearls, precious stones and semi-precious stones export supplies. Icon Group.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Parker, Philip M. The 2002 World Forecasts of Pearls, Precious Stones and Semi-precious Stones Export Supplies. San Diego, Calif.: Icon Group, 2002.

Παραπομπή σε μορφή MLA (8th εκδ.)

Parker, Philip M. The 2002 World Forecasts of Pearls, Precious Stones and Semi-precious Stones Export Supplies. Icon Group, 2002.