Baird M., S. (1998). Usmle step 1 - Review Series - Organ Systems - cardiovascular respiratory Renal & Urinary. s.n.
芝加哥风格引文Baird M., Stephen^raut. Usmle Step 1 - Review Series - Organ Systems - Cardiovascular Respiratory Renal & Urinary. Washington: s.n, 1998.
MLA引文Baird M., Stephen^raut. Usmle Step 1 - Review Series - Organ Systems - Cardiovascular Respiratory Renal & Urinary. s.n, 1998.
警告：这些引文格式不一定是100％准确.