Apgar, W. C. (1972). Inter-regional migration: Evaluation of 1960 census data and implications for analysis of the 1970 census. Harvard Univ.
Chicago-Zitierstil (17. Ausg.)Apgar, William C. Inter-regional Migration: Evaluation of 1960 Census Data and Implications for Analysis of the 1970 Census. Cambridge, Mass: Harvard Univ, 1972.
MLA-Zitierstil (9. Ausg.)Apgar, William C. Inter-regional Migration: Evaluation of 1960 Census Data and Implications for Analysis of the 1970 Census. Harvard Univ, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.