Covell, R. R. (1973). An extension seminary primer (2ª ed.). William Carey Library.
Chicago Style (17th ed.) CitationCovell, Ralph R. An Extension Seminary Primer. 2ª ed. William Carey Library, 1973.
MLA (9th ed.) CitationCovell, Ralph R. An Extension Seminary Primer. 2ª ed. William Carey Library, 1973.
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