Silverton, l. (1993). The art and science of midwifery. Prentice Hall.
Cita Chicago (17th ed.)Silverton, louise. The Art and Science of Midwifery. Prentice Hall, 1993.
Cita MLA (9th ed.)Silverton, louise. The Art and Science of Midwifery. Prentice Hall, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.