Toth, R. B., & Toth, R. B. (2000). Implementing a worldwide sustainable tourism certification system. [Alajuela, C.R.: [INCAE].
Chicago Style CitationToth, Robert B., and Robert B. Toth. Implementing a Worldwide Sustainable Tourism Certification System. [Alajuela, C.R.: [INCAE], 2000.
MLA CitationToth, Robert B., and Robert B. Toth. Implementing a Worldwide Sustainable Tourism Certification System. [Alajuela, C.R.: [INCAE], 2000.
Warning: These citations may not always be 100% accurate.