Hart, L. B. (1991). Training methods that work: 17 tried and tested training methods. London : Kogan page.
Chicago-viite (17. p.)Hart, Lois B. Training Methods That Work: 17 Tried and Tested Training Methods. London : Kogan page, 1991.
MLA-viite (9. p.)Hart, Lois B. Training Methods That Work: 17 Tried and Tested Training Methods. London : Kogan page, 1991.
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