Gaya APA

Barnard, T, P. (2003). Multiple centres of authority: Society and environment in Siak and Eastern Sumatra, 1674-1827. Verhandelingen KITLV, 210 . Leiden: Leiden KITLV Press.

Gaya MLA

Barnard, Timothy, P.. "Multiple centres of authority: Society and environment in Siak and Eastern Sumatra, 1674-1827. Verhandelingen KITLV, 210". Leiden: Leiden KITLV Press, 2003. Buku.