Cita APA (7th ed.)

Schaller, B. (2005). On-board and intercept transit survey techniques. Transportation Research Board.

Cita Chicago (17th ed.)

Schaller, Bruce. On-board and Intercept Transit Survey Techniques. Washington, D.C: Transportation Research Board, 2005.

Cita MLA (9th ed.)

Schaller, Bruce. On-board and Intercept Transit Survey Techniques. Transportation Research Board, 2005.