GALLWEY W TIMOTHY. (2002). INNER GAME OF WORK. TEXERE PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)GALLWEY W TIMOTHY. INNER GAME OF WORK. NEW YORK: TEXERE PUBLICATIONS, 2002.
Lua MLA (9ú heag.)GALLWEY W TIMOTHY. INNER GAME OF WORK. TEXERE PUBLICATIONS, 2002.
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