Gaya APA

Tillich, P, [. (1965). The courage to be, [3d impr.]. - Fontana library, theology and philosophy, 699L. Penerbitan asli 1952. . [London dsl]: Collins.

Gaya MLA

Tillich, P., [1886-1965].. "The courage to be, [3d impr.]. - Fontana library, theology and philosophy, 699L. Penerbitan asli 1952. ". [London dsl]: Collins, 1965. Buku.