Cita APA (7a ed.)
(2001). BMC medical research methodology. BioMed Central.
Cita Chicago Style (17a ed.)
BMC Medical Research Methodology. London: BioMed Central, 2001.
Cita MLA (9a ed.)
BMC Medical Research Methodology. BioMed Central, 2001.
Precaución: Estas citas no son 100% exactas.