Cita APA (7a ed.)

Keith, J. D. (1978). Heart disease in infancy and childhood (3ª ed.). Macmillan.

Cita Chicago Style (17a ed.)

Keith, John D. Heart Disease in Infancy and Childhood. 3ª ed. Macmillan, 1978.

Cita MLA (9a ed.)

Keith, John D. Heart Disease in Infancy and Childhood. 3ª ed. Macmillan, 1978.