APA (7th ed.) Citation

Polak, F. L., & Boulding, E. (1973). The image of the future. Elsevier Scientific Pub.

Chicago Style (17th ed.) Citation

Polak, Frederik Lodewijk, and Elise Boulding. The Image of the Future. Amsterdam: Elsevier Scientific Pub, 1973.

MLA (9th ed.) Citation

Polak, Frederik Lodewijk, and Elise Boulding. The Image of the Future. Elsevier Scientific Pub, 1973.