Shackley, M. L. (1998). Visitor management: Case studies from World Heritage sites. Butterworth Heinemann.
Chicago Style aipamenaShackley, Myra L. Visitor Management: Case Studies from World Heritage Sites. Oxford: Butterworth Heinemann, 1998.
MLA aipamenaShackley, Myra L. Visitor Management: Case Studies from World Heritage Sites. Butterworth Heinemann, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.