Gaya APA

al, E., Peenen, P, V. (1977). Antibodies againts murine typhus in sera from indonesian . Trans of the royal soc of trop: .

Gaya MLA

al, Et., Peenen, P.F.D., Van. "Antibodies againts murine typhus in sera from indonesian". Trans of the royal soc of trop: , 1977. print.