Cita APA

Caro, J. J., O'Brien, J. A., & Hartz, S. C. (1993). Canadian National Breast Screening Study.

Chicago Style Citation

Caro, J J., J A. O'Brien, i S C. Hartz. Canadian National Breast Screening Study. 1993.

Cita MLA

Caro, J J., J A. O'Brien, i S C. Hartz. Canadian National Breast Screening Study. 1993.