O'Connell, T. X. (2014). USMLE step 2 secrets (4th edition.).
Chicago Style (17th ed.) CitationO'Connell, Theodore X. USMLE Step 2 Secrets. 4th edition. Philadelphia, PE (Elsevier), 2014.
MLA (8th ed.) CitationO'Connell, Theodore X. USMLE Step 2 Secrets. 4th edition. 2014.
Warning: These citations may not always be 100% accurate.
