Markland, R. E. (1987). Quantitative Methods Applications To Managerial Decision Making Robert E. Markland And James R. Sweigart. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Markland, Robert E. Quantitative Methods Applications To Managerial Decision Making Robert E. Markland And James R. Sweigart. John Wiley & Sons, 1987.
Lua MLA (8ú heag.)Markland, Robert E. Quantitative Methods Applications To Managerial Decision Making Robert E. Markland And James R. Sweigart. John Wiley & Sons, 1987.
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