Gaya APA

Krugman, S, &, S, L, K. (1981). Infectious diseases of children (edisi 7). London: C.V. Mosby Company.

Gaya MLA

Krugman, Saul, &, Samuel, L., Katz. "Infectious diseases of children". edisi 7 London: C.V. Mosby Company, 1981. Text.