Klauder, A. L. A. (1901). A Recent Catechism and Some of its Critics. The Science of Catechetics and Catechetic Criticism. Swanton, Vt..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Klauder, Alexander Laurence Alphonsus. A Recent Catechism and Some of Its Critics. The Science of Catechetics and Catechetic Criticism. Swanton, Vt., 1901.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Klauder, Alexander Laurence Alphonsus. A Recent Catechism and Some of Its Critics. The Science of Catechetics and Catechetic Criticism. Swanton, Vt., 1901.
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