APA (7th ed.) Zitazioa
Sleezer, C., Russ-Eft, D. F., & Gupta, K. (2014). A practical guide to needs assessment. (Third edition.). Wiley.
Chicago Style (17th ed.) Zitazioa
Sleezer, Catherine, Darlene F. Russ-Eft, eta Kavita Gupta. A Practical Guide to Needs Assessment. Third edition. San Francisco, California: Wiley, 2014.
MLA (9th ed.) Zitazioa
Sleezer, Catherine, et al. A Practical Guide to Needs Assessment. Third edition. Wiley, 2014.
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