Gaya APA

Cloud, H., Townsend, J. (1992). E-book Boundaries: When to Say Yes, How to Say No to Take Control of Your Life . : Zondervan Publishing Company.

Gaya MLA

Cloud, Henry., Townsend, John. "E-book Boundaries: When to Say Yes, How to Say No to Take Control of Your Life". : Zondervan Publishing Company, 1992. Text.