APA aipamena

Douglas, R. P. A., Geen, G. K., Douglas, R., & Geen, G. (1989). The law of harbours and pilotage (3rd ed.). Lloyd's of London Press.

Chicago Style aipamena

Douglas, R. P. A., G. K. Geen, R.P.A Douglas, and G.K Geen. The Law of Harbours and Pilotage. 3rd ed. London: Lloyd's of London Press, 1989.

MLA aipamena

Douglas, R. P. A., et al. The Law of Harbours and Pilotage. 3rd ed. Lloyd's of London Press, 1989.