Cita APA (7a ed.)
(1989). Forest conservation in the east usambara mountains Tanzania. IUCN.
Cita Chicago Style (17a ed.)
Forest Conservation in the East Usambara Mountains Tanzania. Gland, Swetzerland: IUCN, 1989.
Cita MLA (9a ed.)
Forest Conservation in the East Usambara Mountains Tanzania. IUCN, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.