HARVARD BUSINESS REVIEW. (1969). HUMAN RELATIONS: PART. II. HARVARD BUSINESS REVIEW.
Lua i Stíl Chicago (17ú heag.)HARVARD BUSINESS REVIEW. HUMAN RELATIONS: PART. II. BOSTON: HARVARD BUSINESS REVIEW, 1969.
Lua MLA (9ú heag.)HARVARD BUSINESS REVIEW. HUMAN RELATIONS: PART. II. HARVARD BUSINESS REVIEW, 1969.
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