Walsh, L. M. (1933). Memory aids: Arranged to help children to assist at mass and to remember the essentials of Christian doctrine. Leo M. Walsh.
Chicago-viite (17. p.)Walsh, Leo M. Memory Aids: Arranged to Help Children to Assist at Mass and to Remember the Essentials of Christian Doctrine. Cincinnati, Ohio: Leo M. Walsh, 1933.
MLA-viite (8. p.)Walsh, Leo M. Memory Aids: Arranged to Help Children to Assist at Mass and to Remember the Essentials of Christian Doctrine. Leo M. Walsh, 1933.
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