Cita APA (7th ed.)
(1990). 1990 Physicians' desk reference (44th ed.). Barnhart.
Cita Chicago (17th ed.)
1990 Physicians' Desk Reference. 44th ed. New Jersey: Barnhart, 1990.
Cita MLA (9th ed.)
1990 Physicians' Desk Reference. 44th ed. Barnhart, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.