GTZ, UNEP, & FAO. (1999). Integrated planning for sustainable management of land resources. FAO.
Chicago Style (17th ed.) CitationGTZ, UNEP, and FAO. Integrated Planning for Sustainable Management of Land Resources. Roma: FAO, 1999.
MLA (9th ed.) CitationGTZ, et al. Integrated Planning for Sustainable Management of Land Resources. FAO, 1999.