Gaya APA

SILVIUS, M. et al (1984). Soils, vegetation, fauna and nature conservation of the Berbak game reserve, Sumatra, Indonesia . Arnhem: Research institute for nature management.

Gaya MLA

SILVIUS, M.J.. et al. "Soils, vegetation, fauna and nature conservation of the Berbak game reserve, Sumatra, Indonesia". Arnhem: Research institute for nature management, 1984. Buku.