Priest, S. P., & Gass, M. A. P. (2018). Effective leadership in adventure programming (Third Edition.). Human Kinetics.
Lua i Stíl Chicago (17ú heag.)Priest, Simon PhD, agus Michael A. PhD Gass. Effective Leadership in Adventure Programming. Third Edition. Champaign, Illinois: Human Kinetics, 2018.
Lua MLA (9ú heag.)Priest, Simon PhD, agus Michael A. PhD Gass. Effective Leadership in Adventure Programming. Third Edition. Human Kinetics, 2018.
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