Cita APA (7a ed.)

Pels, E., Nijkamp, P., & Rietveld, P. (2003). Access to and competition between airports: A case study for the San Francisco bay area. [s.n.].

Cita Chicago Style (17a ed.)

Pels, Eric, Peter Nijkamp, y Piet Rietveld. Access to and Competition Between Airports: A Case Study for the San Francisco Bay Area. [S.l.]: [s.n.], 2003.

Cita MLA (9a ed.)

Pels, Eric, et al. Access to and Competition Between Airports: A Case Study for the San Francisco Bay Area. [s.n.], 2003.