Wilson, R. H. (1978). 25th Anniversary: Institutional Services Incorporated, Archdiocese of Philadelphia. S.l..
Chicago Style (17th ed.) CitationWilson, Robert H. 25th Anniversary: Institutional Services Incorporated, Archdiocese of Philadelphia. S.l., 1978.
MLA citiranjeWilson, Robert H. 25th Anniversary: Institutional Services Incorporated, Archdiocese of Philadelphia. S.l., 1978.
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