GILBREATH ROBERT D. (1987). FORWARD THINKING: THE PRAGMATISTS GUIDE TO TODAY`S BUSINESS TRENDS. MCGRAW-HILL.
芝加哥风格引文GILBREATH ROBERT D. FORWARD THINKING: THE PRAGMATISTS GUIDE TO TODAY`S BUSINESS TRENDS. LONDON: MCGRAW-HILL, 1987.
MLA引文GILBREATH ROBERT D. FORWARD THINKING: THE PRAGMATISTS GUIDE TO TODAY`S BUSINESS TRENDS. MCGRAW-HILL, 1987.
警告：这些引文格式不一定是100％准确.