Coogan, M. J. (1980). The Redoubtable John Hennessy, First Archbishop of Dubuque. Chicago.
Dyfyniad Arddull ChicagoCoogan, M. Jane. The Redoubtable John Hennessy, First Archbishop of Dubuque. Chicago, 1980.
Dyfyniad MLACoogan, M. Jane. The Redoubtable John Hennessy, First Archbishop of Dubuque. Chicago, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.