Cita APA (7th ed.)

Papua New Guinea & Womersley, J. S. (1978). Handbooks of the flora of Papua New Guinea. Volume 1. Melbourne University Press for government of Papua New Guinea.

Cita Chicago (17th ed.)

Papua New Guinea i John S. Womersley. Handbooks of the Flora of Papua New Guinea. Volume 1. Carlton, Vic: Melbourne University Press for government of Papua New Guinea, 1978.

Cita MLA (8th ed.)

Papua New Guinea i John S. Womersley. Handbooks of the Flora of Papua New Guinea. Volume 1. Melbourne University Press for government of Papua New Guinea, 1978.