APA (7th ed.) Citation

Helvey, T. C. (1971). The age of information: An interdisciplinary survey of cybernetics. Educational Technology Publications.

Chicago Style (17th ed.) Citation

Helvey, T. C. The Age of Information: An Interdisciplinary Survey of Cybernetics. Englewood Cliffs, N.J.: Educational Technology Publications, 1971.

MLA (9th ed.) Citation

Helvey, T. C. The Age of Information: An Interdisciplinary Survey of Cybernetics. Educational Technology Publications, 1971.