APA-viite (7. p.)
Engstrom, T. W., & Mackenzie, R. A. (1976). Managing your time: Practical guidance on thre effective use of time. Zondervan Publ. House.
Chicago-viite (17. p.)
Engstrom, Ted W., ja R. Alec Mackenzie. Managing Your Time: Practical Guidance on Thre Effective Use of Time. Grand Rapids: Zondervan Publ. House, 1976.
MLA-viite (9. p.)
Engstrom, Ted W., ja R. Alec Mackenzie. Managing Your Time: Practical Guidance on Thre Effective Use of Time. Zondervan Publ. House, 1976.
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