रिकॉर्ड उद्धरण

एपीए उद्धरण

(2002). Ecotourism and certification: Setting standards in practice. Washington: Iskand Press.

शिकागो स्टाइल उद्धरण

Ecotourism and Certification: Setting Standards in Practice. Washington: Iskand Press, 2002.

एमएलए उद्धरण

Ecotourism and Certification: Setting Standards in Practice. Washington: Iskand Press, 2002.

चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.