Board on Science and Technology for International Development. (1993). Vetiver grass: A thin green line against erosion. National Academy Press.
Chicago-referens (17:e uppl.)Board on Science and Technology for International Development. Vetiver Grass: A Thin Green Line Against Erosion. Washington, D.C.: National Academy Press, 1993.
MLA-referens (9:e uppl.)Board on Science and Technology for International Development. Vetiver Grass: A Thin Green Line Against Erosion. National Academy Press, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.