Sherk, J. H. N. S. B. f. R. O. (1968). Statements of Religious Bodies on the Conscientious Objector. Washington D.C..
Dyfyniad Arddull ChicagoSherk, J. Harold; National Service Board for Religious Objectors. Statements of Religious Bodies on the Conscientious Objector. Washington D.C., 1968.
Dyfyniad MLASherk, J. Harold; National Service Board for Religious Objectors. Statements of Religious Bodies on the Conscientious Objector. Washington D.C., 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.