APA-Zitierstil (7. Ausg.)

Harder, L., & Kauffman, J. H. (1993). Doors to lock and doors to open: The discerning people of God. Herald Press.

Chicago-Zitierstil (17. Ausg.)

Harder, Leland, und J. Howard Kauffman. Doors to Lock and Doors to Open: The Discerning People of God. Scottdale, Pa.: Herald Press, 1993.

MLA-Zitierstil (9. Ausg.)

Harder, Leland, und J. Howard Kauffman. Doors to Lock and Doors to Open: The Discerning People of God. Herald Press, 1993.