APA (7th ed.) Citation

Schaller, L. E. (1969). The impact of the future. Abingdon Press.

Chicago Style (17th ed.) Citation

Schaller, Lyle E. The Impact of the Future. Nashville: Abingdon Press, 1969.

MLA (9th ed.) Citation

Schaller, Lyle E. The Impact of the Future. Abingdon Press, 1969.