Cita APA (7a ed.)

Horwath HTL (Firma), entitat editora. (2019). How to encourage sustainable tourism?: A short guide for international donors : industry report. Horwath HTL.

Cita Chicago Style (17a ed.)

Horwath HTL (Firma), entitat editora. How to Encourage Sustainable Tourism?: A Short Guide for International Donors : Industry Report. [Lloc de publicació no identificat]: Horwath HTL, 2019.

Cita MLA (9a ed.)

Horwath HTL (Firma), entitat editora. How to Encourage Sustainable Tourism?: A Short Guide for International Donors : Industry Report. Horwath HTL, 2019.