NATIONAL PRODUCTIVITY COUNCIL. (1977). NATIONAL CONVENTION ON PRODUCTIVITY. NATIONAL PRODUCTIVITY COUNCIL.
Citace podle Chicago (17th ed.)NATIONAL PRODUCTIVITY COUNCIL. NATIONAL CONVENTION ON PRODUCTIVITY. NEW DELHI: NATIONAL PRODUCTIVITY COUNCIL, 1977.
Citace podle MLA (9th ed.)NATIONAL PRODUCTIVITY COUNCIL. NATIONAL CONVENTION ON PRODUCTIVITY. NATIONAL PRODUCTIVITY COUNCIL, 1977.
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