Field, J. (1990). Bedding and sleeping position in the sudden infant death syndrome.
Chicago Style CitationField, J. Bedding and Sleeping Position in the Sudden Infant Death Syndrome. 1990.
Cita MLAField, J. Bedding and Sleeping Position in the Sudden Infant Death Syndrome. 1990.
Atenció: Aquestes cites poden no estar 100% correctes.