Delany, Joseph. "Scruple." The Catholic Encyclopedia. Vol. 13. New York: Robert Appleton Company, 1912. 3 Aug. 2020 .

This article was transcribed for New Advent by Douglas J. Potter. Dedicated to the Sacred Heart of Jesus Christ.

Ecclesiastical approbation. Nihil Obstat. February 1, 1912. Remy Lafort, D.D., Censor. Imprimatur. +John Cardinal Farley, Archbishop of New York.