Harper, M. (1976). Consultancy for small businesses: The concept, training the consultants. Intermediate Technology Publications.
Lua i Stíl Chicago (17ú heag.)Harper, Malcolm. Consultancy for Small Businesses: The Concept, Training the Consultants. London: Intermediate Technology Publications, 1976.
Lua MLA (8ú heag.)Harper, Malcolm. Consultancy for Small Businesses: The Concept, Training the Consultants. Intermediate Technology Publications, 1976.
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