Cita APA (7th ed.)

Lewis, R. C. (1986). The practice of hospitality management II: Profitability in a changing environment. AVI.

Cita Chicago (17th ed.)

Lewis, Robert C. The Practice of Hospitality Management II: Profitability in a Changing Environment. Westport, Conn: AVI, 1986.

Cita MLA (9th ed.)

Lewis, Robert C. The Practice of Hospitality Management II: Profitability in a Changing Environment. AVI, 1986.