3,2u.4u.7-8u.10-11=1952 von: [Direction of international trade / Supplementary issue]
3,3u.5/6u.9u.12=1952 von: [Direction of international trade / Quarterly issue]
4,3-8=1953,Jan.-Dez.; 4,9-12=1954,Jan.-Apr.; 5,1-7u.9=1954,Mai-Dez.; 5,10-12=1955,Jan.-März; 6,1-9=1955,Apr.-Dez.; 6,11/12=1956,Jan.-Febr.; 7,3-5u.7/8-11=1956,Mai-Dez.; 7,12=1957,Jan,; 8,1-6u.8/9-12=1957,Febr.-Dez.;9,1-9u.11-12=1958,Jan.-Dez.; 10,1-7u.9-12=1959,Jan-Dez.; 11,1-8=1960,Jan.-Aug./Sept.; 11,10-12=1960,Okt.-Dez.; 12=1962; 13=1963 von: [Direction of international trade / Monthly issue]
4,1/2=1937/52; 5,8=1938/53; 6,10=1938/54; 7,6=1938/55; 8,7=1938; 9,10=1938/57; 10,8=1938/58; 11,9=1948/59 von: [Direction of international trade / Annual issue]