Citação norma APA

Kirchhoff, F., Easterbrook, P. J., Douglas, N., Troop, M., Greenough, T. C., Weber, J., . . . Daniels, R. S. (1999). Sequence Variations in Human Immunodeficiency Virus Type 1 Nef Are Associated with Different Stages of Disease. J Virol.

Citação norma Chicago

Kirchhoff, Frank, Philippa J. Easterbrook, Nigel Douglas, Maxine Troop, Thomas C. Greenough, Jonathan Weber, Silke Carl, John L. Sullivan, and Rod S. Daniels. "Sequence Variations in Human Immunodeficiency Virus Type 1 Nef Are Associated With Different Stages of Disease." J Virol 1999.

Citação norma MLA

Kirchhoff, Frank, et al. "Sequence Variations in Human Immunodeficiency Virus Type 1 Nef Are Associated With Different Stages of Disease." J Virol 1999.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.