Population studies.

no.2-11(1949-1953); no.6 1949; no.7; no.7 1949; no.12; no.12-17(1953-1954); no.13; no.16 1954; no.13:v.1 (1954); no.50:v.1; no.13:v.2 (1954); no.19-25(1954-1956); no.21; no.26-30(1957-1959); no.31-34(1959-1961); no.32; no.33 (1962); no.34; no.35; no.36 (1964); no.37 (1964); no.35-38(1964-1965); no.38 (1965); no.39; no.40; no.40-44(1966-1969); no.41; no.42; no.43; no.44; no.45; no.45-47(1970); no.46; no.47; no.47-48 (1970/71); no.48; no.49; no.50:1(1973); no.66 1979; no.70 1980; no.72 1980; no.78 1981; no.90 1984; no.102-105 1987-1988; no.106 1988; no.110 1988; no.107pt.1 1990; no.107pt.2 1990; no.50:v.2; v.83(1984); no.51; no.52; no.53; no.54; no.56; no.62; no.63; no.103(1988); no.115(1989); no.118(1991); no.120(1991); no.126(1992); no.102suppl.1 1989; no.102suppl.2 1990