Durkin, J. T. (1963). Georgetown University: The middle years, 1840-1900. Georgetown University Press.
Dyfyniad Arddull ChicagoDurkin, Joseph T. Georgetown University: The Middle Years, 1840-1900. Washington: Georgetown University Press, 1963.
Dyfyniad MLADurkin, Joseph T. Georgetown University: The Middle Years, 1840-1900. Georgetown University Press, 1963.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.