APA (7th ed.) Citation

Galbraith, J. K., & Galbraith, J. K. (2009). The great crash, 1929. Boston.

Chicago Style (17th ed.) Citation

Galbraith, James K., and John Kenneth Galbraith. The Great Crash, 1929. Boston, 2009.

MLA (8th ed.) Citation

Galbraith, James K., and John Kenneth Galbraith. The Great Crash, 1929. Boston, 2009.

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