Levy, G., & Levin, B. A. (2014). The biostatistics of aging: From Gompertzian mortality and to an index of aging-relatedness. John Wiley & Sons Inc..

Levy, Gilberto, and Bruce A. Levin. The Biostatistics of Aging: From Gompertzian Mortality and to an Index of Aging-relatedness. Hoboken, NJ: John Wiley & Sons Inc., 2014.

Levy, Gilberto, and Bruce A. Levin. The Biostatistics of Aging: From Gompertzian Mortality and to an Index of Aging-relatedness. John Wiley & Sons Inc., 2014.