APA (7. basım) Alıntı

Okun, B. (1958). Trends in birth rates in the United States since 1870. Johns Hopkins Press.

Chicago Style (17. basım) Atıf

Okun, Bernard. Trends in Birth Rates in the United States Since 1870. Baltimore: Johns Hopkins Press, 1958.

MLA (9th ed.) Atıf

Okun, Bernard. Trends in Birth Rates in the United States Since 1870. Johns Hopkins Press, 1958.