Cita APA (7th ed.)

ELWOOD, J. M. (2000). Critical appraisal of epidemiological studies and clinical trials (Ed.2.). Oxford University Press.

Cita Chicago (17th ed.)

ELWOOD, J. Mark. Critical Appraisal of Epidemiological Studies and Clinical Trials. Ed.2. Oxford: Oxford University Press, 2000.

Cita MLA (9th ed.)

ELWOOD, J. Mark. Critical Appraisal of Epidemiological Studies and Clinical Trials. Ed.2. Oxford University Press, 2000.