Schaeffer, F. A. (1968). The God who is there: Speaking historic christianity into the twentieth century. InterVarsity.
Citazione stile Chigago Style (17a edizione)Schaeffer, Francis A. The God Who Is There: Speaking Historic Christianity into the Twentieth Century. Illinois: InterVarsity, 1968.
Citatione MLA (9a ed.)Schaeffer, Francis A. The God Who Is There: Speaking Historic Christianity into the Twentieth Century. InterVarsity, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.