Blake, R. R. (1985). The managerial grid III: New look at classic that has boosted productivity and profit for thousand of corporatio. Gulf.
Lua i Stíl Chicago (17ú heag.)Blake, Robert R. The Managerial Grid III: New Look at Classic That Has Boosted Productivity and Profit for Thousand of Corporatio. Houston: Gulf, 1985.
Lua MLA (9ú heag.)Blake, Robert R. The Managerial Grid III: New Look at Classic That Has Boosted Productivity and Profit for Thousand of Corporatio. Gulf, 1985.
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