Caldwell, M. L. (1994). Praying for fishhooks: Understanding intercessory prayer. Smyth & Helwys.
Citazione stile Chigago Style (17a edizione)Caldwell, Mary L. Praying for Fishhooks: Understanding Intercessory Prayer. Macon, Ga: Smyth & Helwys, 1994.
Citatione MLA (9a ed.)Caldwell, Mary L. Praying for Fishhooks: Understanding Intercessory Prayer. Smyth & Helwys, 1994.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.