Cita APA (7a ed.)

Turnbull, P., & Harvey, G. (2002). The impact of 11 September 2001 on the civil aviation industry: Social and labour effects. International Labour Organization.

Cita Chicago Style (17a ed.)

Turnbull, Peter, y Geraint Harvey. The Impact of 11 September 2001 on the Civil Aviation Industry: Social and Labour Effects. International Labour Organization, 2002.

Cita MLA (9a ed.)

Turnbull, Peter, y Geraint Harvey. The Impact of 11 September 2001 on the Civil Aviation Industry: Social and Labour Effects. International Labour Organization, 2002.