APA (7e ed.) Bronvermelding

(1987). Forward Thinking: The Pragmatists Guide To Todays Business Trends / Robert D. Gilbreath. McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Forward Thinking: The Pragmatists Guide To Todays Business Trends / Robert D. Gilbreath. McGraw-Hill, 1987.

MLA (8e ed.) Bronvermelding

Forward Thinking: The Pragmatists Guide To Todays Business Trends / Robert D. Gilbreath. McGraw-Hill, 1987.

Let op: Deze citaties zijn niet altijd 100% accuraat.