Cita APA

Aitken, A. W. (1987). Is the tube in the trachea?

Chicago Style Citation

Aitken, A W. Is the Tube in the Trachea? 1987.

Cita MLA

Aitken, A W. Is the Tube in the Trachea? 1987.

Atenció: Aquestes cites poden no estar 100% correctes.