ENRICK, N. L. (1968). Inventory management - installation operation and control - Norbert Lloyd Enric. Chandler Publishing Company.
Lua i Stíl Chicago (17ú heag.)ENRICK, Norbert Lloyd. Inventory Management - Installation Operation and Control - Norbert Lloyd Enric. Chandler Publishing Company, 1968.
Lua MLA (8ú heag.)ENRICK, Norbert Lloyd. Inventory Management - Installation Operation and Control - Norbert Lloyd Enric. Chandler Publishing Company, 1968.
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