APA (7. basım) Alıntı

Krug, R. (1998). Usmle step 1 Review Series: Behavioral Sciences U S Health Care Biostatistics & Epidemiology. s.n.

Chicago Style (17. basım) Atıf

Krug, Ronald. Usmle Step 1 Review Series: Behavioral Sciences U S Health Care Biostatistics & Epidemiology. Chicago: s.n, 1998.

MLA (9th ed.) Atıf

Krug, Ronald. Usmle Step 1 Review Series: Behavioral Sciences U S Health Care Biostatistics & Epidemiology. s.n, 1998.