Hatt, P. K. (1952). Backgrounds of human fertility in Puerto Rico: A sociological survey. Princeton, N.J: Princeton University Press.
Παραπομπή Chicago StyleHatt, Paul K. Backgrounds of Human Fertility in Puerto Rico: A Sociological Survey. Princeton, N.J: Princeton University Press, 1952.
Παραπομπή MLAHatt, Paul K. Backgrounds of Human Fertility in Puerto Rico: A Sociological Survey. Princeton, N.J: Princeton University Press, 1952.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.