APA (7e ed.) Bronvermelding

Costello, A. (1977). How to pray when troubled: From His cross to yours. Liquori Publications.

Chicago (17e ed.) Bronvermelding

Costello, Andrew. How to Pray When Troubled: From His Cross to Yours. Liquori, Mo.: Liquori Publications, 1977.

MLA (8e ed.) Bronvermelding

Costello, Andrew. How to Pray When Troubled: From His Cross to Yours. Liquori Publications, 1977.