SHEA GORDON F. (1992). MENTORING-A PRACTICAL GUIDE. CRISP PUBLICATION.
Lua i Stíl Chicago (17ú heag.)SHEA GORDON F. MENTORING-A PRACTICAL GUIDE. CALIFORNIA: CRISP PUBLICATION, 1992.
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Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.