Cita APA (7a ed.)

Bethlehem, J. G., & Keller, W. J. (1990). New technologies in computer assisted survey processing. Eustat.

Cita Chicago Style (17a ed.)

Bethlehem, Jelke G., y Wouter J. Keller. New Technologies in Computer Assisted Survey Processing. Vitoria-Gasteiz: Eustat, 1990.

Cita MLA (9a ed.)

Bethlehem, Jelke G., y Wouter J. Keller. New Technologies in Computer Assisted Survey Processing. Eustat, 1990.