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1gan Catholic Church. United States Catholic Conference.Location: PAHRC Library, Philadelphia Archdiocesan Historical Research Center (PAHRC)
Cyhoeddwyd 1967
Cael y testun llawn
Pamphlet -
2gan Catholic Church. United States Catholic Conference.Location: PAHRC Library, Philadelphia Archdiocesan Historical Research Center (PAHRC)
Cyhoeddwyd 1974
Cael y testun llawn
Pamphlet -
3gan Catholic Church. United States Catholic Conference. Dept. of Education.Location: PAHRC Library, Philadelphia Archdiocesan Historical Research Center (PAHRC)
Cyhoeddwyd 1978
Cael y testun llawn
Pamphlet