Cita APA (7a ed.)

Miller, B., & Clarke, J. (2007). The hidden value of air transportation infrastructure. [s.n.].

Cita Chicago Style (17a ed.)

Miller, Bruno, y John-Paul Clarke. The Hidden Value of Air Transportation Infrastructure. [S.l.]: [s.n.], 2007.

Cita MLA (9a ed.)

Miller, Bruno, y John-Paul Clarke. The Hidden Value of Air Transportation Infrastructure. [s.n.], 2007.