APA (7th ed.) Citation

Mamula, M. (1998). Usmle step 1 - Review Series: Microbiology Immunology. s.n.

Chicago Style (17th ed.) Citation

Mamula, Mark. Usmle Step 1 - Review Series: Microbiology Immunology. Washignton: s.n, 1998.

MLA (9th ed.) Citation

Mamula, Mark. Usmle Step 1 - Review Series: Microbiology Immunology. s.n, 1998.