Παραπομπή σε μορφή APA (7η εκδ.)

Ng, B. E. (1990). Hongkong and Singapore: Competition of complementarity. Economic Research Dept., DBS Bank.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ng, Bok Eng. Hongkong and Singapore: Competition of Complementarity. Singapore: Economic Research Dept., DBS Bank, 1990.

Παραπομπή σε μορφή MLA (8th εκδ.)

Ng, Bok Eng. Hongkong and Singapore: Competition of Complementarity. Economic Research Dept., DBS Bank, 1990.