Cita APA (7a ed.)

Sage Publications. (1986). Qualitative research methods. Sage Publ.

Cita Chicago Style (17a ed.)

Sage Publications. Qualitative Research Methods. Beverly Hills, Calif. [u.a.]: Sage Publ, 1986.

Cita MLA (9a ed.)

Sage Publications. Qualitative Research Methods. Sage Publ, 1986.