Costello, A. (1977). How to pray when troubled: From His cross to yours. Liquori Publications.
Lua i Stíl Chicago (17ú heag.)Costello, Andrew. How to Pray When Troubled: From His Cross to Yours. Liquori, Mo.: Liquori Publications, 1977.
Lua MLA (8ú heag.)Costello, Andrew. How to Pray When Troubled: From His Cross to Yours. Liquori Publications, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.