Cita APA (7th ed.)

Hudman, L. E. (1990). Geography of travel and tourism. Delmar.

Cita Chicago (17th ed.)

Hudman, Lloyd E. Geography of Travel and Tourism. Albany, N.Y: Delmar, 1990.

Cita MLA (9th ed.)

Hudman, Lloyd E. Geography of Travel and Tourism. Delmar, 1990.