Presser, H. B. (1973). Sterilization and fertility decline in Puerto Rico. Institute of International Studies, University of California.
Chicago Style aipamenaPresser, Harriet B. Sterilization and Fertility Decline in Puerto Rico. Berkeley: Institute of International Studies, University of California, 1973.
MLA aipamenaPresser, Harriet B. Sterilization and Fertility Decline in Puerto Rico. Institute of International Studies, University of California, 1973.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.