Cita APA (7th ed.)

Nykiel, R. A. (1983). Marketing in the hospitality industry. CBI.

Cita Chicago (17th ed.)

Nykiel, Ronald A. Marketing in the Hospitality Industry. Boston, Mass: CBI, 1983.

Cita MLA (9th ed.)

Nykiel, Ronald A. Marketing in the Hospitality Industry. CBI, 1983.