Research relating to children.

no.1; no.1 (Dec 1948-June 1949); no.1 yr.1948-49 mo.DEC-JUN; no.1 1954; no.2; no.2 1955; no.3-7; no.3; no.3-4 1956; no.5-6 1957; no.3-7 (Dec 1955-Feb 1958); no.7; no.8-12; no.8; no.9; no.9-10 1959; no.10 yr.1959 mo.MAR-JUL; no.8-11 (Mar 1958-Jan 1960); no.11-12 1959-1960; no.13-17; no.13-14 1959-1960; no.12-14 (Feb 1960-Sept 1961); no.15-16 1961-1962; no.16; no.16 1963; no.15-17 (Oct 1961-Feb 1964); no.17; no.17-18 1963-1964; no.18-20; no.18-21; no.18 yr.1964 mo.MAR-DEC; no.19; no.19-20 1965-1966; no.20; no.20 1966; no.18-21 (Mar 1964-Apr 1967); no.21-25; no.21-22 1967-1968; no.22; no.22-26; no.23-25 1968-1969; no.22-26 (May 1967-May 1970); no.24; no.26-29; no.26 1970; no.27-31; no.27 1970; no.27 (June 1970-Feb 1971); no.28; no.30-33; no.30 yr.1972; no.28-32 (Mar 1971-Aug 1973); no.31 yr.1972/73; no.29-33 1972-1975; bull.35 (1975); no.33-37 (Mar 1974-Aug 1976); bull.36 (1975/76); bull.37 (1976); no.34-37; no.34-36 1976; bull.38 (1976/77); bull.39 (1977); no.37-39 1977; bull.40 (1977/78); bull.41 (1978); no.38-42; no.39 c.2; no.40-42 1978; no.38-41 (Sept 1976-Aug 1979); bull.42 (1978/79); no.42; no.42 (Sept 1978-Feb 1979); no.2 (Jan 1952-Nov 1955); no.2 suppl. 1-4; NO1SUPPL1 1954; NO1SUPPL2-5 1954; NO2SUPPL1-3 1955; NO2SUPPL4 1955; no.1:suppl.1 (July 1949-Mar 1950); no.1:suppl.2-5 (Apr 1950-May 1951); SUPPLEMENT: no.01 yr.1949-50 mo.JUL-MAR sup.1; SUPPLEMENT: no.02 sup.1; SUPPLEMENT: no.02 sup.2; SUPPLEMENT: no.02 sup.3; SUPPLEMENT: no.02 sup.4; no.2 Suppl.1-4