Gaya APA

Niebuhr, H, R., Niebuhr, R, R. (1989). Faith on Earth : an inquiry into the structure of human faith (1). : Yale University Press.

Gaya MLA

Niebuhr, H., Richard., Niebuhr, Richard, R.. "Faith on Earth : an inquiry into the structure of human faith". 1 : Yale University Press, 1989. Non Fiction.