Cita APA (7th ed.)

Dukas, P. (1976). Planning profits in the food and lodging industry. Cahners Books.

Cita Chicago (17th ed.)

Dukas, Peter. Planning Profits in the Food and Lodging Industry. Boston, Mass: Cahners Books, 1976.

Cita MLA (9th ed.)

Dukas, Peter. Planning Profits in the Food and Lodging Industry. Cahners Books, 1976.