Ciba Pharmeutical Products. The story of serpasil. s.n., 1955.
Cita Chicago (17th ed.)Ciba Pharmeutical Products. The Story of Serpasil. Summit, New Jersey: s.n., 1955.
Cita MLA (9th ed.)Ciba Pharmeutical Products. The Story of Serpasil. s.n., 1955.
Atenció: Aquestes cites poden no estar 100% correctes.