Jensen, N. E. (1980). Variation of type Antigens of Group-B Streptococci: I. Variation of the X-Antigen and of other type Antigens in Herds Where the X-Antigen Occurs. Acta Vet Scand.
Citação norma ChicagoJensen, Niels Einar. "Variation of Type Antigens of Group-B Streptococci: I. Variation of the X-Antigen and of Other Type Antigens in Herds Where the X-Antigen Occurs." Acta Vet Scand 1980.
Citação norma MLAJensen, Niels Einar. "Variation of Type Antigens of Group-B Streptococci: I. Variation of the X-Antigen and of Other Type Antigens in Herds Where the X-Antigen Occurs." Acta Vet Scand 1980.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.