International Friends of Nature. (1991). Everybody's talking about soft tourism: We're doing something about it! : ten practical examples of what the Friends of Nature have done. International Friends of Nature.
Chicago-Zitierstil (17. Ausg.)International Friends of Nature. Everybody's Talking About Soft Tourism: We're Doing Something About It! : Ten Practical Examples of What the Friends of Nature Have Done. Vienna: International Friends of Nature, 1991.
MLA-Zitierstil (8. Ausg.)International Friends of Nature. Everybody's Talking About Soft Tourism: We're Doing Something About It! : Ten Practical Examples of What the Friends of Nature Have Done. International Friends of Nature, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.