Gaya APA

KEESLER, P, J, A., SIDIYASA, K. (1994). Tress of the Balikpapan-Samarinda area, East Kalimantan, Indonesia . Wageningen: The tropenbos foundation.

Gaya MLA

KEESLER, P., J., A.., SIDIYASA, Kade. "Tress of the Balikpapan-Samarinda area, East Kalimantan, Indonesia". Wageningen: The tropenbos foundation, 1994. Buku.