Barton, T. K. (1993). Appleton & Lange's review for the USMLE step 1. Appleton & Lange.
Chicago Style (17th ed.) CitationBarton, Thomas K. Appleton & Lange's Review for the USMLE Step 1. Norwalk, Conn: Appleton & Lange, 1993.
MLA (9th ed.) CitationBarton, Thomas K. Appleton & Lange's Review for the USMLE Step 1. Appleton & Lange, 1993.
Warning: These citations may not always be 100% accurate.