APA (7th ed.) Citation

Groothuis, D. (1986). Unmasking the new age (ed.). Inter Varsity Press.

Chicago Style (17th ed.) Citation

Groothuis, Douglas. Unmasking the New Age. ed. Illinois: Inter Varsity Press, 1986.

MLA (9th ed.) Citation

Groothuis, Douglas. Unmasking the New Age. ed. Inter Varsity Press, 1986.