Cita APA (7a ed.)

Heard, B. E. (1969). Pathology of chronic bronchitis and emphysema. J. & A. Churchill.

Cita Chicago Style (17a ed.)

Heard, Brian Edyvean. Pathology of Chronic Bronchitis and Emphysema. London: J. & A. Churchill, 1969.

Cita MLA (9a ed.)

Heard, Brian Edyvean. Pathology of Chronic Bronchitis and Emphysema. J. & A. Churchill, 1969.