APA
Gilkey L. B., . (1993). Nature, reality, and the sacred. Minneapolis: Fortress Press.
Chicago
Gilkey Langdon Brown, . 1993. Nature, reality, and the sacred. Minneapolis: Fortress Press.
Harvard
Gilkey L. B., . (1993). Nature, reality, and the sacred. Minneapolis: Fortress Press.
MLA
Gilkey Langdon Brown, . Nature, reality, and the sacred. Minneapolis: Fortress Press. 1993.