Gaya APA

Barnard, T, P. (2003). Multiple centres of authority : society and environment in Siak and eastern Sunatra 1674-1827 . Leiden: KITLV Press.

Gaya MLA

Barnard, Timothy, P.. "Multiple centres of authority : society and environment in Siak and eastern Sunatra 1674-1827". Leiden: KITLV Press, 2003. Text.