Brown, S. S. (1988). Prenatal care: Reaching mothers, reaching infants. National Academy.
Cita Chicago (17th ed.)Brown, Sarah S. Prenatal Care: Reaching Mothers, Reaching Infants. National Academy, 1988.
Cita MLA (9th ed.)Brown, Sarah S. Prenatal Care: Reaching Mothers, Reaching Infants. National Academy, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.