Cita APA (7th ed.)

Hassanien, A., Dale, C., & Clarke, A. (2010). Hospitality business development. Butterworth-Heinemann/Elsevier.

Cita Chicago (17th ed.)

Hassanien, Ahmed, Crispin Dale, i Alan Clarke. Hospitality Business Development. Amsterdam: Butterworth-Heinemann/Elsevier, 2010.

Cita MLA (9th ed.)

Hassanien, Ahmed, et al. Hospitality Business Development. Butterworth-Heinemann/Elsevier, 2010.