Cita APA (7a ed.)

Ely, M., & Anzul, M. (1991). Doing qualitative research. Circles within circles. Falmer Press.

Cita Chicago Style (17a ed.)

Ely, Margot, y Margaret Anzul. Doing Qualitative Research. Circles Within Circles. New York [etc.]: Falmer Press, 1991.

Cita MLA (9a ed.)

Ely, Margot, y Margaret Anzul. Doing Qualitative Research. Circles Within Circles. Falmer Press, 1991.