Stahl, M. J. (1992). Strategic Management For Decision Making Michael J. Stahl; David W Grigsby. PWS-Kent.
Lua i Stíl Chicago (17ú heag.)Stahl, Michael J. Strategic Management For Decision Making Michael J. Stahl; David W Grigsby. PWS-Kent, 1992.
Lua MLA (8ú heag.)Stahl, Michael J. Strategic Management For Decision Making Michael J. Stahl; David W Grigsby. PWS-Kent, 1992.
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