FRIEDMAN LAWRENCE M. (1998). FUNDAMENTALS OF CLINICAL TRIALS. SPRINGER.
Chicago Style aipamenaFRIEDMAN LAWRENCE M. FUNDAMENTALS OF CLINICAL TRIALS. USA: SPRINGER, 1998.
MLA aipamenaFRIEDMAN LAWRENCE M. FUNDAMENTALS OF CLINICAL TRIALS. SPRINGER, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.