RITZMAN, L. P. (2003). Foundations of operations management [ada CD]Larry P. Ritzman, Lee J. Krajewski. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)RITZMAN, Larry P. Foundations of Operations Management [ada CD]Larry P. Ritzman, Lee J. Krajewski. Prentice Hall, 2003.
Lua MLA (8ú heag.)RITZMAN, Larry P. Foundations of Operations Management [ada CD]Larry P. Ritzman, Lee J. Krajewski. Prentice Hall, 2003.
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