(1984). Applied social research methods series. Sage Publ.
Cita Chicago Style (17a ed.)Applied Social Research Methods Series. Thousand Oaks, Calif. [u.a.]: Sage Publ, 1984.
Cita MLA (8a ed.)Applied Social Research Methods Series. Sage Publ, 1984.
Precaución: Estas citas no son 100% exactas.