Trends and characteristics of international migration since 1950.

Xehetasun bibliografikoak
Erakunde egilea:	United Nations. Dept. of Economic and Social Affairs
Formatua:	Liburua
Hizkuntza:	English
Argitaratua:	New York United Nations 1979.
Saila:	Demographic [i.e. Population] studies no. 64
Gaiak:	Emigration and immigration > Statistics.