APA-čujuhus (7. p.)
Crabb, L. J., & Alexander, D. B. (1984). Encouragement: The key to caring. Zondervan.
Chicago-čujuhus (17. p.)
Crabb, Lawrence J., juo Dan B. Alexander. Encouragement: The Key to Caring. Michigan: Zondervan, 1984.
MLA-čujuhus (9. p.)
Crabb, Lawrence J., juo Dan B. Alexander. Encouragement: The Key to Caring. Zondervan, 1984.
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