Inglês Geneva: International Labour Office, 1990 vol. ; 30 cm Colecção : Sources and methods
0255-3465
Vol. 5: Total and economically active population, employment and unemployment : population censuses. - 1990. - XIV, 263, 8 p. - ISBN 92-2-106447-6. Vol. 6: Household income and expenditure surveys. - 1992. - IX, 305 p. - ISBN 92-2-107752-7.
CDU: 341.1