APA (7th ed.) Citation

O'Connell, T. X., & O'Connell, T. X. (2022). USMLE step 2 secrets (6th edition.). Elsevier.

Chicago Style (17th ed.) Citation

O'Connell, Theodore X., and Theodore X. O'Connell. USMLE Step 2 Secrets. 6th edition. Philadelphia, PA: Elsevier, 2022.

MLA (8th ed.) Citation

O'Connell, Theodore X., and Theodore X. O'Connell. USMLE Step 2 Secrets. 6th edition. Elsevier, 2022.