Cita APA

Perkins, J. E. (1954). The National Tuberculosis Association: Fiftieth anniversary.

Chicago Style Citation

Perkins, James E. The National Tuberculosis Association: Fiftieth Anniversary. 1954.

Cita MLA

Perkins, James E. The National Tuberculosis Association: Fiftieth Anniversary. 1954.

Atenció: Aquestes cites poden no estar 100% correctes.