[1]
1982. Pierre D. Thionet. Quelques problemes concemtlnt les sondages. Goettingen : Vandenhoeck & Ruprecht. 1978. 137pp. The Pakistan Development Review. 21, 1 (Mar. 1982), pp.83–84. DOI:https://doi.org/10.30541/v21i1pp.83-84.