Schaefer, R. T. (1987). Introducing sociology: A collection of readings. McGraw-Hill.
Dyfyniad Arddull ChicagoSchaefer, Richard T. Introducing Sociology: A Collection of Readings. New York: McGraw-Hill, 1987.
Dyfyniad MLASchaefer, Richard T. Introducing Sociology: A Collection of Readings. McGraw-Hill, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.