John Paul II, P. (1980). Christ tells youth how to be happy. Daughters of St. Paul.
Čikaški stil citiranja (17. izdanje)John Paul II, Pope. Christ Tells Youth How to Be Happy. Boston, Mass.: Daughters of St. Paul, 1980.
MLA način citiranja (8. izdanje)John Paul II, Pope. Christ Tells Youth How to Be Happy. Daughters of St. Paul, 1980.
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