Παραπομπή σε μορφή APA (7η εκδ.)

Pal Singh, B. (1984). The impact of tourism on the balance of payments: A case study of Greece. Centre of Planning and Economic Research.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Pal Singh, Brij. The Impact of Tourism on the Balance of Payments: A Case Study of Greece. Athens: Centre of Planning and Economic Research, 1984.

Παραπομπή σε μορφή MLA (8th εκδ.)

Pal Singh, Brij. The Impact of Tourism on the Balance of Payments: A Case Study of Greece. Centre of Planning and Economic Research, 1984.