Burt, W. L., & Cooper, M. H. (1983). A two centre survey of medication. University of Otago.
Cita Chicago (17th ed.)Burt, Wayne L., i Michael H. Cooper. A Two Centre Survey of Medication. Dunedin, N.Z.: University of Otago, 1983.
Cita MLA (8th ed.)Burt, Wayne L., i Michael H. Cooper. A Two Centre Survey of Medication. University of Otago, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.