Sloan, P., Legrand, W., & Chen, J. S. (2009). Sustainability in the hospitality industry: Principles of sustainable operations. Butterworth-Heinemann.
Citazione stile Chigago Style (17a edizione)Sloan, Philip, Willy Legrand, e Joseph S. Chen. Sustainability in the Hospitality Industry: Principles of Sustainable Operations. Amsterdam: Butterworth-Heinemann, 2009.
Citatione MLA (9a ed.)Sloan, Philip, et al. Sustainability in the Hospitality Industry: Principles of Sustainable Operations. Butterworth-Heinemann, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.