Citação norma APA

Yang, Q., Greenland, S., & Flanders, W. D. (2006). Associations of Maternal Age- and Parity-Related Factors With Trends in Low-Birthweight Rates: United States, 1980 Through 2000. © American Journal of Public Health 2006.

Citação norma Chicago

Yang, Quanhe, Sander Greenland, and W. Dana Flanders. Associations of Maternal Age- and Parity-Related Factors With Trends in Low-Birthweight Rates: United States, 1980 Through 2000. © American Journal of Public Health 2006, 2006.

Citação norma MLA

Yang, Quanhe, Sander Greenland, and W. Dana Flanders. Associations of Maternal Age- and Parity-Related Factors With Trends in Low-Birthweight Rates: United States, 1980 Through 2000. © American Journal of Public Health 2006, 2006.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.