Lua APA (7ú heag.)

SNOW HARRISON. (1992). POWER OF TEAM BUILDING USING ROPES TECHNIQUES. PEIFFER & COMPANY.

Lua i Stíl Chicago (17ú heag.)

SNOW HARRISON. POWER OF TEAM BUILDING USING ROPES TECHNIQUES. TORONTO: PEIFFER & COMPANY, 1992.

Lua MLA (9ú heag.)

SNOW HARRISON. POWER OF TEAM BUILDING USING ROPES TECHNIQUES. PEIFFER & COMPANY, 1992.

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