Baird M., S. (1998). Usmle step 1 - Review Series - Organ Systems - cardiovascular respiratory Renal & Urinary. s.n.
Chicago-viite (17. p.)Baird M., Stephen^raut. Usmle Step 1 - Review Series - Organ Systems - Cardiovascular Respiratory Renal & Urinary. Washington: s.n, 1998.
MLA-viite (9. p.)Baird M., Stephen^raut. Usmle Step 1 - Review Series - Organ Systems - Cardiovascular Respiratory Renal & Urinary. s.n, 1998.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.