Giele, J. Z., & Elder, G. H. (1998). Methods of life course research: Qualitative and quantitative approaches. Sage.
Lua i Stíl Chicago (17ú heag.)Giele, Janet Zollinger, agus Glen H. Elder. Methods of Life Course Research: Qualitative and Quantitative Approaches. Thousand Oaks, Calif: Sage, 1998.
Lua MLA (9ú heag.)Giele, Janet Zollinger, agus Glen H. Elder. Methods of Life Course Research: Qualitative and Quantitative Approaches. Sage, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.