Gaya APA

Weil, J. (2017). Research design in aging and social gerontology : quantitative, qualitative, and mixed methods 1st edition (Edisi satu, Maret 2017). London, New york: Routledge.

Gaya MLA

Weil, Joyce. "Research design in aging and social gerontology : quantitative, qualitative, and mixed methods 1st edition". Edisi satu, Maret 2017 London, New york: Routledge, 2017. Text.