APA (7th ed.) Citation

Naturfreunde Internationale (NFI). (1999). 17th Congress International Friends of Nature: Tagungsunterlagen. S.l.: NFI.

Chicago Style (17th ed.) Citation

Naturfreunde Internationale (NFI). 17th Congress International Friends of Nature: Tagungsunterlagen. S.l.: NFI, 1999.

MLA (8th ed.) Citation

Naturfreunde Internationale (NFI). 17th Congress International Friends of Nature: Tagungsunterlagen. S.l.: NFI, 1999.

Warning: These citations may not always be 100% accurate.