APA (7th ed.) Citation
Kahn, H., Martel, L., & Brown, W. (1977). The next 200 years: A scenaric for America and the World. Associated Business Programmes.
Chicago Style (17th ed.) Citation
Kahn, Herman, Leon Martel, and William Brown. The Next 200 Years: A Scenaric for America and the World. London: Associated Business Programmes, 1977.
MLA (9th ed.) Citation
Kahn, Herman, et al. The Next 200 Years: A Scenaric for America and the World. Associated Business Programmes, 1977.
Warning: These citations may not always be 100% accurate.