TURTLE, Q. (1994). Implementing Concurrent Project Management. PTR Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)TURTLE, Quentin. Implementing Concurrent Project Management. PTR Prentice-Hall, 1994.
Lua MLA (8ú heag.)TURTLE, Quentin. Implementing Concurrent Project Management. PTR Prentice-Hall, 1994.
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