APA način citiranja (7. izdanje)

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

Čikaški stil citiranja (17. izdanje)

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

MLA način citiranja (9. izdanje)

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