Ragan, C. A., & Coulston, F. (1975). Medequiz annual.
Cita Chicago (17th ed.)Ragan, Charles A., i Frederick Coulston. Medequiz Annual. 1975.
Cita MLA (9th ed.)Ragan, Charles A., i Frederick Coulston. Medequiz Annual. 1975.
Atenció: Aquestes cites poden no estar 100% correctes.