Gaya APA

Cunningham, F, G., et.al, . (2025). Obstetri William, Ed. 25, Vol. 2 (Ed. 25). : EGC.

Gaya MLA

Cunningham, F., Gary., et.al, . "Obstetri William, Ed. 25, Vol. 2". Ed. 25 : EGC, 2025. Text.