APA
Engstrom T. W., Mackenzie R. A., . (1981). Managing your time: practical guidelines on the effective use of time. Grand Rapids: Zondervan Pub. House.
Chicago
Engstrom Theodore Wilhelm, Mackenzie R Alec, . 1981. Managing your time: practical guidelines on the effective use of time. Grand Rapids: Zondervan Pub. House.
Harvard
Engstrom T. W., Mackenzie R. A., . (1981). Managing your time: practical guidelines on the effective use of time. Grand Rapids: Zondervan Pub. House.
MLA
Engstrom Theodore Wilhelm, Mackenzie R Alec, . Managing your time: practical guidelines on the effective use of time. Grand Rapids: Zondervan Pub. House. 1981.
文字出版細節:Grand Rapids, Zondervan Pub. House [1981]版本: [twenty-fourth ed.]說明: 242 p. 23 cm主題: 杜威分類法: 
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