Παραπομπή σε μορφή APA (7η εκδ.)

CHRISTIAWAN. (1988). Proffesional Development Of Indonesian Contractors For Preparation Of Overseas Construction Business By Christiawan. Project University.

Παραπομπή σε μορφή Chicago (17η εκδ.)

CHRISTIAWAN. Proffesional Development Of Indonesian Contractors For Preparation Of Overseas Construction Business By Christiawan. Project University, 1988.

Παραπομπή σε μορφή MLA (8th εκδ.)

CHRISTIAWAN. Proffesional Development Of Indonesian Contractors For Preparation Of Overseas Construction Business By Christiawan. Project University, 1988.