Broom, L. (1970). Principles of sociology (4th.ed.). Harper & Row.
Dyfyniad Arddull ChicagoBroom, Leonard. Principles of Sociology. 4th.ed. New York: Harper & Row, 1970.
Dyfyniad MLABroom, Leonard. Principles of Sociology. 4th.ed. Harper & Row, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.