Gaya APA

…[et.al], J, B, H. (1985). Viral diseases of the fetus and newborn (2). Philadelphia: WB. Saunders Company.

Gaya MLA

…[et.al], James, Barry, Hanshaw,. "Viral diseases of the fetus and newborn". 2 Philadelphia: WB. Saunders Company, 1985. Text.