Roff, D. A. (1992). The Evolution Of Life Histories; Theory And Analysis / Derek A. Roff. Chapman & Hall.
Lua i Stíl Chicago (17ú heag.)Roff, Derek A. The Evolution Of Life Histories; Theory And Analysis / Derek A. Roff. Chapman & Hall, 1992.
Lua MLA (8ú heag.)Roff, Derek A. The Evolution Of Life Histories; Theory And Analysis / Derek A. Roff. Chapman & Hall, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.