Sandercock, P. (2011). Investigator led trials: Challenges and opportunities. BioMed Central.
Chicago Style aipamenaSandercock, Peter. Investigator Led Trials: Challenges and Opportunities. BioMed Central, 2011.
MLA aipamenaSandercock, Peter. Investigator Led Trials: Challenges and Opportunities. BioMed Central, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.