APA

Cassel C., Särndal C., Wretman J. H. & Cassel C. (1977). Foundations of inference in survey sampling. New York [u.a.]: Wiley.

Chicago

Cassel Claes, Särndal Carl-Erik, Wretman Jan Håkan and Cassel Claes. 1977. Foundations of inference in survey sampling. New York [u.a.]: Wiley.

Harvard

Cassel C., Särndal C., Wretman J. H. and Cassel C. (1977). Foundations of inference in survey sampling. New York [u.a.]: Wiley.

MLA

Cassel Claes, Särndal Carl-Erik, Wretman Jan Håkan and Cassel Claes. Foundations of inference in survey sampling. New York [u.a.]: Wiley. 1977.