APA aipamena

Buckley, R. (2014). Conservation Tourism. CABI.

Chicago Style aipamena

Buckley, Ralf. Conservation Tourism. CABI, 2014.

MLA aipamena

Buckley, Ralf. Conservation Tourism. CABI, 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.