Steiner, U., Tuljapurkar, S., Coulson, T., & Horvitz, C. (2012). Trading stages: Life expectancies in structured populations.
Lua i Stíl Chicago (17ú heag.)Steiner, UK, S. Tuljapurkar, T. Coulson, agus C. Horvitz. Trading Stages: Life Expectancies in Structured Populations. 2012.
Lua MLA (9ú heag.)Steiner, UK, et al. Trading Stages: Life Expectancies in Structured Populations. 2012.
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