Cita APA (7th ed.)

Holland, J., & Leslie, D. (2017). Tour operators and operations: Development, management & responsibility. CABI.

Cita Chicago (17th ed.)

Holland, Jacqueline, i David Leslie. Tour Operators and Operations: Development, Management & Responsibility. Wallingford: CABI, 2017.

Cita MLA (8th ed.)

Holland, Jacqueline, i David Leslie. Tour Operators and Operations: Development, Management & Responsibility. CABI, 2017.