Gaya APA

Hak pengusahaan hutan PT National Timber and Forest Product I di Kabupaten Dati II Bengkalis Provinsi Riau, luas 100.000 Ha. (1999). : Pekanbaru : PT National Timber and Forest Product I.

Gaya MLA

Hak pengusahaan hutan PT National Timber and Forest Product I di Kabupaten Dati II Bengkalis Provinsi Riau, luas 100.000 Ha. . : Pekanbaru : PT National Timber and Forest Product I, 1999. Text.