Cita APA

La Vecchia, C., Negri, E., Franceschi, S., Conti, E., Montella, M., Giacosa, A., . . . Decarli, A. (1997). Aspirin and colorectal cancer. Nature Publishing Group.

Chicago Style Citation

La Vecchia, C., E. Negri, S. Franceschi, E. Conti, M. Montella, A. Giacosa, A. Falcini, i A. Decarli. Aspirin and Colorectal Cancer. Nature Publishing Group, 1997.

Cita MLA

La Vecchia, C., et al. Aspirin and Colorectal Cancer. Nature Publishing Group, 1997.

Atenció: Aquestes cites poden no estar 100% correctes.