Gaya APA

Tho, L. et al (2010). First Aid Q&A for The USMLE Step 2 CK: Second Edition (-). New York: McGrawHill.

Gaya MLA

Tho, Le. et al. "First Aid Q&A for The USMLE Step 2 CK: Second Edition". - New York: McGrawHill, 2010. Text.