Citação norma APA

Liu, C., Crawford, F., Marrack, P., & Kappler, J. (1998). T cell positive selection by a high density, low affinity ligand. National Academy of Sciences.

Citação norma Chicago

Liu, Chih-Pin, Frances Crawford, Philippa Marrack, and John Kappler. T Cell Positive Selection By a High Density, Low Affinity Ligand. National Academy of Sciences, 1998.

Citação norma MLA

Liu, Chih-Pin, Frances Crawford, Philippa Marrack, and John Kappler. T Cell Positive Selection By a High Density, Low Affinity Ligand. National Academy of Sciences, 1998.

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