APA citiranje

Stoddard, J. J., & Gray, B. (1997). Maternal smoking and medical expenditures for childhood respiratory illness.

Citação norma Chicago

Stoddard, J J., and B. Gray. Maternal Smoking and Medical Expenditures for Childhood Respiratory Illness. 1997.

MLA citiranje

Stoddard, J J., and B. Gray. Maternal Smoking and Medical Expenditures for Childhood Respiratory Illness. 1997.