(1994). IGBP in Action: Work Plan 1994 - 1998. International Geosphere-Biosphere Programme (IGBP).
Citazione stile Chigago Style (17a edizione)IGBP in Action: Work Plan 1994 - 1998. Stockholm: International Geosphere-Biosphere Programme (IGBP), 1994.
Citatione MLA (9a ed.)IGBP in Action: Work Plan 1994 - 1998. International Geosphere-Biosphere Programme (IGBP), 1994.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.