Lua APA (7ú heag.)
Summers, M. R. (1998). Analyzing operations in business: Issues, tools, and techniques. Quorum Books.
Lua i Stíl Chicago (17ú heag.)
Summers, Michael Roger. Analyzing Operations in Business: Issues, Tools, and Techniques. Westport, Conn.: Quorum Books, 1998.
Lua MLA (9ú heag.)
Summers, Michael Roger. Analyzing Operations in Business: Issues, Tools, and Techniques. Quorum Books, 1998.
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