Cita APA

Ogden, W. S. (1981). Points: Aspirin and the stomach.

Chicago Style Citation

Ogden, W S. Points: Aspirin and the Stomach. 1981.

Cita MLA

Ogden, W S. Points: Aspirin and the Stomach. 1981.

Atenció: Aquestes cites poden no estar 100% correctes.