APA (7th ed.) Citation

Elwood, J. M. (1992). Causal relationships in medicine: A practical system for critical appraisal. Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Elwood, J. Mark. Causal Relationships in Medicine: A Practical System for Critical Appraisal. Oxford u.a: Oxford Univ. Press, 1992.

MLA (9th ed.) Citation

Elwood, J. Mark. Causal Relationships in Medicine: A Practical System for Critical Appraisal. Oxford Univ. Press, 1992.

Warning: These citations may not always be 100% accurate.