APA (7th ed.) Citation

World Future Society & Spekke, A. A. (1975). The Next 25 years: Crisis & opportunity. World Future Society.

Chicago Style (17th ed.) Citation

World Future Society and Andrew A. Spekke. The Next 25 Years: Crisis & Opportunity. Washington: World Future Society, 1975.

MLA (9th ed.) Citation

World Future Society and Andrew A. Spekke. The Next 25 Years: Crisis & Opportunity. World Future Society, 1975.

Warning: These citations may not always be 100% accurate.