Naturfreunde Internationale (NFI). (1999). Shaping the new century, green paths into the future: 17th Congress International Friends of Nature : NFI-Kongress 24.- 26. September 1999, Blankenberge : Anträge. S.l.: NFI.
Chicago Style (17th ed.) CitationNaturfreunde Internationale (NFI). Shaping the New Century, Green Paths into the Future: 17th Congress International Friends of Nature : NFI-Kongress 24.- 26. September 1999, Blankenberge : Anträge. S.l.: NFI, 1999.
MLA (8th ed.) CitationNaturfreunde Internationale (NFI). Shaping the New Century, Green Paths into the Future: 17th Congress International Friends of Nature : NFI-Kongress 24.- 26. September 1999, Blankenberge : Anträge. S.l.: NFI, 1999.
Warning: These citations may not always be 100% accurate.