Cita APA (7a ed.)

O'Connor, M., & Porter, R. (1968). Cystic fibrosis. : J. & A. Churchill.

Cita Chicago Style (17a ed.)

O'Connor, Maeve, y Ruth Porter. Cystic Fibrosis. London: : J. & A. Churchill, 1968.

Cita MLA (9a ed.)

O'Connor, Maeve, y Ruth Porter. Cystic Fibrosis. : J. & A. Churchill, 1968.