Gaya APA
CHECKLIST for a tree flora of the Balikpapan-Samarinda area, East Kalimantan, Indonesia. (1992).
Amsterdam:
Tropenbos.
Gaya MLA
CHECKLIST for a tree flora of the Balikpapan-Samarinda area, East Kalimantan, Indonesia.
.
Amsterdam:
Tropenbos,
1992.
Buku.