APA (7th ed.) Zitazioa
Foster, R. J. (2005). A study guide to Celebration of discipline. LifeSprings Resources.
Chicago Style (17th ed.) Zitazioa
Foster, Richard J. A Study Guide to Celebration of Discipline. Franklin Springs, GA: LifeSprings Resources, 2005.
MLA (9th ed.) Zitazioa
Foster, Richard J. A Study Guide to Celebration of Discipline. LifeSprings Resources, 2005.
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