Cole, R., & Mackay, A. D. (1990). Essentials of respiratory disease (3rd ed.). Churchill Livingstone.
Cita Chicago Style (17a ed.)Cole, R.B, y A. David Mackay. Essentials of Respiratory Disease. 3rd ed. Edinburgh: Churchill Livingstone, 1990.
Cita MLA (9a ed.)Cole, R.B, y A. David Mackay. Essentials of Respiratory Disease. 3rd ed. Churchill Livingstone, 1990.
Precaución: Estas citas no son 100% exactas.