STUART, Alan, "Sample Surveys. II: Nonprobability Sampling", en David L. Sills (ed.), International Encyclopedia of the Social Sciences, vol. 13, Macmillan -The Free Press, New York, 1968, pp. 612-616.
(xsd:string)
STUART, A. (1968). Sample Surveys. New York: Macmillan -The Free Press. International Encyclopedia of the Social Sciences, 13 pp. 612-616.
(xsd:string)