APA সাইটেশন

Ayres, R. U. (1969). Technological forecasting and long-range planning. New York: McGraw-Hill.

শিকাগো স্টাইলে সাইটেশন

Ayres, Robert U. Technological Forecasting and Long-range Planning. New York: McGraw-Hill, 1969.

এমএলএ সাইটেশন

Ayres, Robert U. Technological Forecasting and Long-range Planning. New York: McGraw-Hill, 1969.