Gaya APA

Jakarta, B, P, S. (1989). Statistik bongkar muat barang di pelabulan Indonesia 1986 = Cargo loading and unloading at ports in . Jakarta: [s.n.].

Gaya MLA

Jakarta, BIRO, Pusat, Statistik,. "Statistik bongkar muat barang di pelabulan Indonesia 1986 = Cargo loading and unloading at ports in ". Jakarta: [s.n.], 1989. Buku.