Gaya APA

Alsdorf, K, L., Keller, T. (2012). Every Good Endeavor: Connecting Your Work to God's Work . New York: Penguin Group.

Gaya MLA

Alsdorf, Katherine, Leary., Keller, Timothy. "Every Good Endeavor: Connecting Your Work to God's Work". New York: Penguin Group, 2012. e-book.