APA (7th ed.) Citation

Engerman, S. L., & Gallman, R. E. (1986). Long-term factors in American economic growth. University of Chicago Press.

Chicago Style (17th ed.) Citation

Engerman, Stanley L., and Robert E. Gallman. Long-term Factors in American Economic Growth. Chicago: University of Chicago Press, 1986.

MLA (9th ed.) Citation

Engerman, Stanley L., and Robert E. Gallman. Long-term Factors in American Economic Growth. University of Chicago Press, 1986.