Walsh-Heron, J., & Stevens, T. (1990). The management of visitor attractions and events. Prentice-Hall.
Chicago Style aipamenaWalsh-Heron, John, and Terry Stevens. The Management of Visitor Attractions and Events. Englewood Cliffs, N.J: Prentice-Hall, 1990.
MLA aipamenaWalsh-Heron, John, and Terry Stevens. The Management of Visitor Attractions and Events. Prentice-Hall, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.