APA citiranje

Helwigh, A. B., & Nansen, P. (1999). Establishment of Ascaris suum in the Pig: Development of Immunity Following a Single Primary Infection. Acta Vet Scand.

Citação norma Chicago

Helwigh, A. B., and P. Nansen. "Establishment of Ascaris Suum in the Pig: Development of Immunity Following a Single Primary Infection." Acta Vet Scand 1999.

MLA citiranje

Helwigh, A. B., and P. Nansen. "Establishment of Ascaris Suum in the Pig: Development of Immunity Following a Single Primary Infection." Acta Vet Scand 1999.