Colgan, H. V. (1941). Devotions under the flag: A prayer book for Catholic men in every branch of the service. Catholic Publications Press.
Chicago Style (17. basım) AtıfColgan, H. V. Devotions Under the Flag: A Prayer Book for Catholic Men in Every Branch of the Service. New York: Catholic Publications Press, 1941.
MLA (8th ed.) AtıfColgan, H. V. Devotions Under the Flag: A Prayer Book for Catholic Men in Every Branch of the Service. Catholic Publications Press, 1941.
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