APA引文

Campbell, F. C., Blamey, R. W., Elston, C. W., Nicholson, R. I., Griffiths, K., & Haybittle, J. L. (1981). Oestrogen-receptor status and sites of metastasis in breast cancer. Nature Publishing Group.

Citação norma Chicago

Campbell, F. C., R. W. Blamey, C. W. Elston, R. I. Nicholson, K. Griffiths, and J. L. Haybittle. Oestrogen-receptor Status and Sites of Metastasis in Breast Cancer. Nature Publishing Group, 1981.

MLA引文

Campbell, F. C., et al. Oestrogen-receptor Status and Sites of Metastasis in Breast Cancer. Nature Publishing Group, 1981.