Παραπομπή APA

Cassel, C. (1977). Foundations of inference in survey sampling. John Wiley.

Παραπομπή Chicago Style

Cassel, Claes-Magnus. Foundations of Inference in Survey Sampling. New York: John Wiley, 1977.

Παραπομπή MLA

Cassel, Claes-Magnus. Foundations of Inference in Survey Sampling. John Wiley, 1977.