Holt, L. E., & Howland, J. (1939). Diseases of infancy and childhood. Appleton-Century Company.
Cita Chicago (17th ed.)Holt, L. Emett, i Jhon Howland. Diseases of Infancy and Childhood. New York: Appleton-Century Company, 1939.
Cita MLA (9th ed.)Holt, L. Emett, i Jhon Howland. Diseases of Infancy and Childhood. Appleton-Century Company, 1939.
Atenció: Aquestes cites poden no estar 100% correctes.