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