APA (7e ed.) Bronvermelding

GILBREATH ROBERT D. (1987). FORWARD THINKING: THE PRAGMATISTS GUIDE TO TODAY`S BUSINESS TRENDS. MCGRAW-HILL.

Chicago (17e ed.) Bronvermelding

GILBREATH ROBERT D. FORWARD THINKING: THE PRAGMATISTS GUIDE TO TODAY`S BUSINESS TRENDS. LONDON: MCGRAW-HILL, 1987.

MLA (9e ed.) Bronvermelding

GILBREATH ROBERT D. FORWARD THINKING: THE PRAGMATISTS GUIDE TO TODAY`S BUSINESS TRENDS. MCGRAW-HILL, 1987.