SMITH, J. R. (1987). Entrepreneur A Simulation Jerald R. Smith, Peggy A. Golden. Houghton Mifflin Company.
Lua i Stíl Chicago (17ú heag.)SMITH, Jerald R. Entrepreneur A Simulation Jerald R. Smith, Peggy A. Golden. Houghton Mifflin Company, 1987.
Lua MLA (8ú heag.)SMITH, Jerald R. Entrepreneur A Simulation Jerald R. Smith, Peggy A. Golden. Houghton Mifflin Company, 1987.
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