Ayres, R. U. (1969). Technological forecasting and long-range planning. New York: McGraw-Hill.
Chicago Style citaatAyres, Robert U. Technological Forecasting and Long-range Planning. New York: McGraw-Hill, 1969.
MLA citatieAyres, Robert U. Technological Forecasting and Long-range Planning. New York: McGraw-Hill, 1969.
Let op: Deze citaties zijn niet altijd 100% accuraat.