Clawson, D. (1998). Required reading: Sociology's most influential books. University of Massachussets Press.
Dyfyniad Arddull ChicagoClawson, Dan. Required Reading: Sociology's Most Influential Books. Amherst: University of Massachussets Press, 1998.
Dyfyniad MLAClawson, Dan. Required Reading: Sociology's Most Influential Books. University of Massachussets Press, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.