Media type: E-Book; Thesis Title: Development concept of an appropriate and sustainable agroforestry system for subsistence farmers in Gurakor : a case study in Papua New Guinea Contributor: Nothhelfer, Ursula [Author] Published: Hannover: Univ., Inst. für Landesplanung u. Raumforschung, 1998 Extent: Online-Ressource Language: English Keywords: Hochschulschrift Origination: University thesis: Hannover, Univ., Inst. für Landesplanung u. Raumforschung, Dipl.-Arb., 1998 Footnote: Access State: Open Access