Urhausen, J. (2008). Tourism in Europe: Does age matter? Statistics in focus: Industry, trade and services.
Citação do estilo Chicago (17ª ed.)Urhausen, Julia. "Tourism in Europe: Does Age Matter?" Statistics in Focus: Industry, Trade and Services 2008.
Citação MLA (8ª ed.)Urhausen, Julia. "Tourism in Europe: Does Age Matter?" Statistics in Focus: Industry, Trade and Services, 2008.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.