APA (7th ed.) Citation

Purtill, R. L. (1978). Thinking about religion: A philosophical introd. to religion. Prentice Hall.

Chicago Style (17th ed.) Citation

Purtill, Richard Lawrence. Thinking About Religion: A Philosophical Introd. to Religion. Englewood Cliffs, N.J: Prentice Hall, 1978.

MLA (8th ed.) Citation

Purtill, Richard Lawrence. Thinking About Religion: A Philosophical Introd. to Religion. Prentice Hall, 1978.