Johns, R. (1986). The instability of the tropical ecosystem in New Guinea.
Lua i Stíl Chicago (17ú heag.)Johns, R.J. The Instability of the Tropical Ecosystem in New Guinea. 1986.
Lua MLA (9ú heag.)Johns, R.J. The Instability of the Tropical Ecosystem in New Guinea. 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.