APA-referens (7:e uppl.)

Colgan, H. V. (1941). Devotions under the flag: A prayer book for Catholic men in every branch of the service. Catholic Publications Press.

Chicago-referens (17:e uppl.)

Colgan, 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-referens (8:e uppl.)

Colgan, H. V. Devotions Under the Flag: A Prayer Book for Catholic Men in Every Branch of the Service. Catholic Publications Press, 1941.